Free with trial Collection of black outline symbols representing manufacturing, machinery, and factory operations. Compressor vectors Industrial process icons set. Collection of black outline symbols representing manufacturing, machinery, and factory operations. Collection of black outline symbols representing manufacturing, machinery, and factory operations.
Free with trial Heat pump air source shadow icon, cooling electric system machine, cool web vector illustration. Compressor vectors Heat pump air source shadow icon, cooling electric system machine, cool web vector illustration.
Free with trial Nebulizer icon on white with outline, eps 10 file, easy to edit. Compressor vectors Nebulizer icon on white with outline. Eps 10 file, easy to edit
Free with trial Chiller icon on white, line vector sign, eps 10 file, easy to edit. Compressor vectors Chiller icon on white, line vector sign. Eps 10 file, easy to edit
Free with trial Industrial ventilation glyph icon. Air flow color sign. Commercial HVAC. Occupational health and safety. Ventilation pipe. Concept for your logo web mobile app UI design. Vector linear illustration. Compressor vectors Industrial ventilation glyph icon. Air flow. Commercial HVAC. Occupational health and safety. Ventilation pipe. Concept. Industrial ventilation glyph icon. Air. Industrial ventilation glyph icon. Air flow color sign. Commercial HVAC. Occupational health and safety. Ventilation pipe. Concept for your logo web mobile app UI design. Vector linear illustration.
Free with trial Air filter with waves effect. Antibacterial, dust, solid particle filtration and ventilation. Hvac system linear icon. Simple concept for your logo web mobile app UI design. Vector outline illustration. Compressor vectors Air filter with waves effect. Antibacterial, dust, solid particle filtration and ventilation. Hvac system linear icon. Simple concept for your logo web mobile
Free with trial This image showcases a bold black silhouette of a jet engine, also referred to as an aircraft turbine or propulsion system, symbolizing power and technology. Vector clipart illustration design using ai tool. Compressor vectors Jet engine silhouette. This image showcases a bold black silhouette of a jet engine, also referred to as an aircraft turbine or propulsion system, symbolizing. This image showcases a bold black silhouette of a jet engine, also referred to as an aircraft turbine or propulsion system, symbolizing power and technology. Vector clipart illustration design using ai tool.
Free with trial Set line Chassis car Car wheel Canister for gasoline Gear Automotive turbocharger and Timing belt kit icon. Vector. Compressor vectors Set line Chassis car, Car wheel, Canister for gasoline, Gear, Automotive turbocharger, and Timing belt kit icon. Vector. Set line Chassis car Car wheel Canister. Set line Chassis car Car wheel Canister for gasoline Gear Automotive turbocharger and Timing belt kit icon. Vector.
Free with trial Job safety icons High-Quality Vector Icons Collection with Editable Stroke. Ideal for Professional and Creative Projects. High-Quality Vector Icons Collection. Compressor vectors Job safety icons High-Quality Vector Icons Collection with Editable Stroke. Ideal for Professional and Creative Projects. High-Quality Vector Icons Collection
Free with trial Set line Paint bucket spray gun and. Glowing neon icon. Vector. Compressor vectors Set line Paint bucket, spray, gun and . Glowing neon icon. Vector. Set line Paint bucket spray gun and . Glowing neon icon. Vector. Set line Paint bucket spray gun and . Glowing neon icon. Vector.
Free with trial Set Car tire wheel air filter Automotive turbocharger and Repair car on lift icon with long shadow. Vector. Compressor vectors Set Car tire wheel, air filter, Automotive turbocharger and Repair car on lift icon with long shadow. Vector. Set Car tire wheel air filter Automotive. Set Car tire wheel air filter Automotive turbocharger and Repair car on lift icon with long shadow. Vector.
Free with trial High-Quality Vector Icons Collection with Editable Stroke. Ideal for Professional and Creative Projects. Compressor vectors Manufacturing icon pack High-Quality Vector Icons Collection with Editable Stroke. Ideal for Professional and Creative. High-Quality Vector Icons Collection with. High-Quality Vector Icons Collection with Editable Stroke. Ideal for Professional and Creative Projects.
Free with trial Air Conditioning color icon. Heating, ventilation and cooling systems for indoor climate control. Fans, vents and temperature regulation equipment. Compressor vectors Air Conditioning color icon. Heating, ventilation and cooling systems for indoor climate control. Fans, vents and. Temperature regulation equipment
Free with trial Air Conditioning color icon. Heating, ventilation and cooling systems for indoor climate control. Fans, vents and temperature regulation equipment. Compressor vectors Air Conditioning color icon. Heating, ventilation and cooling systems for indoor climate control. Fans, vents and. Air Conditioning color icon . Heating. Air Conditioning color icon . Heating, ventilation and cooling systems for indoor climate control. Fans, vents and temperature regulation equipment.
Free with trial Air ventilation color icon. Heating, ventilation and cooling systems for indoor climate control. Fans, vents and temperature regulation equipment. Compressor vectors Air ventilation color icon. Heating, ventilation and cooling systems for indoor climate control. Fans, vents and. Temperature regulation equipment
Free with trial Abstract illustration of air conditioning and refrigeration services, highlighting modern solutions for temperature control. Suitable for service and technology themes. Compressor vectors Professional HVAC and Refrigeration Services for Home and Commercial Buildings. Abstract illustration of air conditioning and refrigeration services. Abstract illustration of air conditioning and refrigeration services, highlighting modern solutions for temperature control. Suitable for service and technology themes.
Free with trial Abstract illustration of air conditioning and refrigeration services, highlighting modern solutions for temperature control. Suitable for service and technology themes. Compressor vectors Professional HVAC and Refrigeration Services for Home and Commercial Buildings. Abstract illustration of air conditioning and refrigeration services. Abstract illustration of air conditioning and refrigeration services, highlighting modern solutions for temperature control. Suitable for service and technology themes.
Free with trial Ceiling Mounted Ventilator Exhaust Fan Icon. Air Duct System Illustration. Compressor vectors Call center operator phone icon. Ceiling Mounted Ventilator Exhaust Fan Icon. Air Duct System Illustration. Ceiling Mounted Ventilator Exhaust Fan Icon. Air Duct System Illustration.
Free with trial Industrial air conditioner or ventilation system outdoor unit close up retro poster stylized vector illustration. Compressor vectors Air ventilation system outdoor unit close up retro poster. Industrial air conditioner or ventilation system outdoor unit close up retro poster stylized vector. Industrial air conditioner or ventilation system outdoor unit close up retro poster stylized vector illustration
Free with trial AC Outdoor Unit Fan icon. On White Background. Compressor vectors AC Outdoor Unit Fan icon. On White Background
Free with trial Illustration symbol design template for web mobile UI element. Perfect color modern pictogram on editable stroke. Compressor vectors Liquefied Petroleum Gas Simple vector icon. Illustration symbol design template for web mobile UI element. Perfect color. Illustration symbol design template for. Illustration symbol design template for web mobile UI element. Perfect color modern pictogram on editable stroke.
Free with trial Cartoon spray paint gun icon. Flat design icon of a green cartoon spray paint gun with a yellow canister on a blue background. Compressor vectors Cartoon spray paint gun icon. Flat design icon of a green cartoon spray paint gun with a yellow canister on a blue background
Free with trial Car wash by pressure washing vector icon. Also called water jet sprayer. Car care service for dirty auto or vehicle to cleaning exterior before detailing by using surface cleaner equipment. 48x48 px. Compressor vectors Car wash by pressure washing vector icon 48x48 pixel perfect and editable stroke. Car wash by pressure washing vector icon. Also called water jet sprayer. Car. Car wash by pressure washing vector icon. Also called water jet sprayer. Car care service for dirty auto or vehicle to cleaning exterior before detailing by using surface cleaner equipment. 48x48 px.
Free with trial Heat pump air source shadow icon, cooling electric system machine, cool web vector illustration. Compressor vectors Heat pump air source shadow icon, cooling electric system machine, cool web vector illustration.
Free with trial Water pump station. Pumping system industry pumps pipeline construction, industrial steel piping power tube liquid supply purification plant, vector illustration of industrial industry equipment. Compressor vectors Water pump station. Pumping system industry pumps pipeline construction, industrial steel piping centrifugal power tube. Water pump station. Pumping system. Water pump station. Pumping system industry pumps pipeline construction, industrial steel piping power tube liquid supply purification plant, vector illustration of industrial industry equipment
Free with trial High-Quality Vector Icons Collection with Editable Stroke. Ideal for Professional and Creative Projects. Compressor vectors Air conditioning maintenance icons High-Quality Vector Icons Collection with Editable Stroke. Ideal for Professional and. High-Quality Vector Icons Collection. High-Quality Vector Icons Collection with Editable Stroke. Ideal for Professional and Creative Projects.
Free with trial Factory icons. High-Quality Vector Icons Collection with Editable Stroke. Ideal for Professional and Creative Projects. High-Quality Vector Icons Collection. Compressor vectors Factory icons . High-Quality Vector Icons Collection with Editable Stroke. Ideal for Professional and Creative Projects. High-Quality Vector Icons Collection
Free with trial Industry icons High-Quality Vector Icons Collection with Editable Stroke. Ideal for Professional and Creative Projects. High-Quality Vector Icons Collection. Compressor vectors Industry icons High-Quality Vector Icons Collection with Editable Stroke. Ideal for Professional and Creative Projects. High-Quality Vector Icons Collection
Free with trial Turbine for motor engine solid icon, car service concept. Vector graphics. Car part turbine, fan sign on white background, glyph style icon for mobile or web design. Compressor vectors Turbine for motor engine solid icon, car service concept. Vector graphics. Car part turbine, fan sign on white. Background, glyph style icon for mobile or web
Free with trial Vector illustration of AC icon design. line style design. Compressor vectors Illustration of AC icon design. Vector illustration of AC icon design. line style design. vector illustration of AC icon design. line style design.
Free with trial AC Outdoor Unit icon. On White Background. Compressor vectors AC Outdoor Unit icon. On White Background
Free with trial Blue industrial water pump in flat cartoon style with simplified details and shadows, isolated on white background. Concept of mechanical equipment. Vector illustration. Compressor vectors Blue industrial water pump icon. Vector illustration. Blue industrial water pump in flat cartoon style with simplified details and shadows, isolated on white. Blue industrial water pump in flat cartoon style with simplified details and shadows, isolated on white background. Concept of mechanical equipment. Vector illustration
Free with trial Air conditioner icon. Thin Linear, Gradient, Blue Stroke and bold Style Design Isolated On White Background. Vector illustration. Compressor vectors Air conditioner icon.Thin Linear, Gradient, Blue Stroke and bold Style Design Isolated On White Background. Vector illustration
Free with trial Air conditioner icon. Thin Linear, Gradient, Blue Stroke and bold Style Design Isolated On White Background. Vector illustration. Compressor vectors Air conditioner icon.Thin Linear, Gradient, Blue Stroke and bold Style Design Isolated On White Background. Vector illustration
Free with trial Air conditioner icon. Thin Linear, Gradient, Blue Stroke and bold Style Design Isolated On White Background. Vector illustration. Compressor vectors Air conditioner icon.Thin Linear, Gradient, Blue Stroke and bold Style Design Isolated On White Background. Vector illustration
Free with trial Air conditioner icon. Thin Linear, Gradient, Blue Stroke and bold Style Design Isolated On White Background. Vector illustration. Compressor vectors Air conditioner icon.Thin Linear, Gradient, Blue Stroke and bold Style Design Isolated On White Background. Vector illustration
Free with trial Air conditioner icon. Thin Linear, Gradient, Blue Stroke and bold Style Design Isolated On White Background. Vector illustration. Compressor vectors Air conditioner icon.Thin Linear, Gradient, Blue Stroke and bold Style Design Isolated On White Background. Vector illustration
Free with trial Colorful simplistic pressure gauge illustration. Vector illustration of a bright pressure gauge with a simple, clear dial. Compressor vectors Colorful simplistic pressure gauge illustration. Vector illustration of a bright pressure gauge with a simple, clear dial
Free with trial High-Quality Vector Icons Collection with Editable Stroke. Ideal for Professional and Creative Projects. Compressor vectors Industrial process icons High-Quality Vector Icons Collection with Editable Stroke. Ideal for Professional and Creative. High-Quality Vector Icons Collection. High-Quality Vector Icons Collection with Editable Stroke. Ideal for Professional and Creative Projects.
Free with trial Nebulizer line icon. Medical equipment for inhalation in the diseases, asthma, bronchitis, rhinitis. Healthcare symbol isolated on white background. Compressor vectors Nebulizer line icon. Medical equipment for inhalation in the diseases, asthma, bronchitis, rhinitis. Healthcare symbol isolated on white background
Free with trial Air Conditioner Repair Logo Design Template. Air Conditioning And Snowflake With Twist, Logo Template. Construction, Repair, And Installation Of Air Conditioners, Vector Design, Illustration. Compressor vectors Air Conditioner Repair Logo Design Template. Air Conditioning And Snowflake With Twist, Logo Template. Construction, Repair, And Installation Of Air
Free with trial Nebulizer color icon. Medical equipment for inhalation in the diseases, asthma, bronchitis, rhinitis. Healthcare symbol isolated on white background. Compressor vectors Nebulizer color icon. Medical equipment for inhalation in the diseases, asthma, bronchitis, rhinitis. Healthcare symbol isolated on white background
Free with trial Air pump with gloss simple icons. In color rounded square frames on white background. Compressor vectors Air pump with gloss simple icons. In color rounded square frames on white background
Free with trial Air Conditioning icon symbol set. Air conditioner icons collection. Air Conditioning icon pack. Vector illustration image. Isolated on white background. Compressor vectors Air Conditioning icon symbol set. Air conditioner icons collection. Air Conditioning icon pack. Vector illustration image. Isolated on white background
Free with trial Conditioner air filter vent remote icons set. Outline illustration of 25 conditioner air filter vent remote vector icons neon color on black. Compressor vectors Conditioner air filter icons set vector neon. Conditioner air filter vent remote icons set. Outline illustration of 25 conditioner air filter vent remote vector. Conditioner air filter vent remote icons set. Outline illustration of 25 conditioner air filter vent remote vector icons neon color on black
Free with trial Motor electric pump icon cartoon vector. Aquatic farm. Motor machine valve. Compressor vectors Motor electric pump icon cartoon vector. Aquatic farm. Motor machine valve
Free with trial Black and white line art of a paint spray gun. Vector illustration of a paint spray gun in a simple line art style on a white background. Compressor vectors Black and white line art of a paint spray gun. Vector illustration of a paint spray gun in a simple line art style on a white background
Free with trial Brake bleeder kit line icon vector illustration. Brake bleeder kit line icon vector. brake bleeder kit sign. isolated contour symbol black illustration. Compressor vectors Brake bleeder kit line icon vector illustration. Brake bleeder kit line icon vector. brake bleeder kit sign. isolated contour symbol black illustration
Free with trial Air Conditioning, linear style icon set. Heating, ventilation and cooling systems for indoor climate control. Fans, vents and temperature regulation equipment. Compressor vectors Air Conditioning, linear style icon set. Heating, ventilation and cooling systems for indoor climate control. Fans. Vents and temperature regulation equipment
Free with trial Air Conditioning, linear style icon set. Heating, ventilation and cooling systems for indoor climate control. Fans, vents and temperature regulation equipment. Editable stroke width. Compressor vectors Air Conditioning, linear style icon set. Heating, ventilation and cooling systems for indoor climate control. Fans. Vents and temperature regulation equipment
Free with trial Professional manufacturing doodle icon set for industrial design projects. Includes AI, EPS, PNGs, SVG, and Figma formats. Compressor vectors A sketchy style icon of hydraulic press machine. Professional manufacturing doodle icon set for industrial design projects. Includes AI, EPS, PNGs, SVG, and. Professional manufacturing doodle icon set for industrial design projects. Includes AI, EPS, PNGs, SVG, and Figma formats.
Free with trial Garden underwater motor icon cartoon vector. Pipe gear. Garden farm spigot. Compressor vectors Garden underwater motor icon cartoon vector. Pipe gear. Garden farm spigot
Free with trial Pump pipe gear icon cartoon vector. Liquid farm system. Electric equipment. Compressor vectors Pump pipe gear icon cartoon vector. Liquid farm system. Electric equipment
Free with trial Flat design vector illustration of a spray gun. Simplistic graphic of a spray gun with a shadow, depicted in a flat design style. Compressor vectors Flat design vector illustration of a spray gun. Simplistic graphic of a spray gun with a shadow, depicted in a flat design style
Free with trial Car accessories floor mats seat icons set vector. covers, dashcam gps, roof rack spoiler, tint rims, subwoofer, charger, organizer car accessories floor mats seat glyph pictogram Illustrations. Compressor vectors Car accessories floor mats seat icons set vector. Covers, dashcam gps, roof rack spoiler, tint rims, subwoofer, charger, organizer car accessories floor mats
Free with trial Diver diving cylinder cartoon. isometric realistic, sitting co2, snorkeling man diver diving cylinder sign. isolated symbol vector illustration. Compressor vectors Diver diving cylinder cartoon vector illustration. Diver diving cylinder cartoon. isometric realistic, sitting co2, snorkeling man diver diving cylinder sign. diver diving cylinder cartoon. isometric realistic, sitting co2, snorkeling man diver diving cylinder sign. isolated symbol vector illustration
Free with trial Air conditioner icon, ac symbol, cool ventilation. Vector. Compressor vectors Air conditioner icon, ac symbol, cool ventilation. Vector
Free with trial A clean and minimalist line art icon depicting an outdoor air conditioner unit. The illustration features a rectangular shape with rounded corners, showcasing a fan grille on the left side and ventilation slats on the right. Rendered in black outline on a white background, this versatile vector graphic is ideal for representing HVAC systems, climate control, home appliances, or energy solutions in web designs, mobile applications, infographics, and technical diagrams. It conveys concepts of cooling, heating, and environmental comfort with a modern, simple aesthetic. Compressor vectors Air Conditioner Outdoor Unit Line Icon. A clean and minimalist line art icon depicting an outdoor air conditioner unit. The illustration features a rectangular. A clean and minimalist line art icon depicting an outdoor air conditioner unit. The illustration features a rectangular shape with rounded corners, showcasing a fan grille on the left side and ventilation slats on the right. Rendered in black outline on a white background, this versatile vector graphic is ideal for representing HVAC systems, climate control, home appliances, or energy solutions in web designs, mobile applications, infographics, and technical diagrams. It conveys concepts of cooling, heating, and environmental comfort with a modern, simple aesthetic.
Free with trial Brake bleeder kit isometric icon vector illustration. Brake bleeder kit isometric icon vector. brake bleeder kit sign. isolated symbol illustration. Compressor vectors Brake bleeder kit isometric icon vector illustration. Brake bleeder kit isometric icon vector. brake bleeder kit sign. isolated symbol illustration
Free with trial Refrigerator Cartoon Design Illustration. Vector eps format suitable for your design needs logo illustration animation etc. Compressor vectors Refrigerator Cartoon Design Illustration. Vector eps format suitable for your design needs logo illustration animation etc
Free with trial Creeper car repair tool line icon vector. creeper car repair tool sign. isolated contour symbol black illustration. Compressor vectors Creeper car repair tool line icon vector illustration. Creeper car repair tool line icon vector. creeper car repair tool sign. isolated contour symbol black. creeper car repair tool line icon vector. creeper car repair tool sign. isolated contour symbol black illustration
Free with trial Isometric diving cylinder cartoon. realistic sitting, co2 snorkeling, man bottle isometric diving cylinder sign. isolated symbol vector illustration. Compressor vectors Isometric diving cylinder cartoon vector illustration. Isometric diving cylinder cartoon. realistic sitting, co2 snorkeling, man bottle isometric diving cylinder. isometric diving cylinder cartoon. realistic sitting, co2 snorkeling, man bottle isometric diving cylinder sign. isolated symbol vector illustration
Free with trial Creeper car repair tool color icon vector illustration. Creeper car repair tool color icon vector. creeper car repair tool sign. isolated symbol illustration. Compressor vectors Creeper car repair tool color icon vector illustration. Creeper car repair tool color icon vector. creeper car repair tool sign. isolated symbol illustration
Free with trial Line art illustration of spray paint gun. Black and white line art vector illustration of a handheld spray paint gun. Compressor vectors Line art illustration of spray paint gun. Black and white line art vector illustration of a handheld spray paint gun
Free with trial Ceiling Mounted Ventilator Exhaust Fan Icon. Air Duct System Illustration. Compressor vectors Ceiling Mounted Ventilator Exhaust Fan Icon. Air Duct System Illustration.
Free with trial Car accessories seat cover doodle icons set vector. phone mount, dash cam, vacuum cleaner, tire pressure gauge, freshener car accessories seat cover sketch hand drawn. Compressor vectors Car accessories seat cover icons hand drawn. Car accessories seat cover doodle icons set vector. phone mount, dash cam, vacuum cleaner, tire pressure gauge. car accessories seat cover doodle icons set vector. phone mount, dash cam, vacuum cleaner, tire pressure gauge, freshener car accessories seat cover sketch hand drawn
Free with trial Dash cam accessory icon doodle illustration. Dash cam accessory doodle icon sketch vector. dash cam accessory sign. isolated symbol illustration. Compressor vectors Dash cam accessory icon doodle illustration. Dash cam accessory doodle icon sketch vector. dash cam accessory sign. isolated symbol illustration
Free with trial Sunshade accessory icon doodle illustration. Sunshade accessory doodle icon sketch vector. sunshade accessory sign. isolated symbol illustration. Compressor vectors Sunshade accessory icon doodle illustration. Sunshade accessory doodle icon sketch vector. sunshade accessory sign. isolated symbol illustration
Free with trial Wrench set car repair tool line icon vector. wrench set car repair tool sign. isolated contour symbol black illustration. Compressor vectors Wrench set car repair tool line icon vector illustration. Wrench set car repair tool line icon vector. wrench set car repair tool sign. isolated contour symbol. wrench set car repair tool line icon vector. wrench set car repair tool sign. isolated contour symbol black illustration
Free with trial Roof rack accessory icon doodle illustration. Roof rack accessory doodle icon sketch vector. roof rack accessory sign. isolated symbol illustration. Compressor vectors Roof rack accessory icon doodle illustration. Roof rack accessory doodle icon sketch vector. roof rack accessory sign. isolated symbol illustration
Free with trial Car battery charger car icon doodle illustration. Car battery charger car doodle icon sketch vector. car battery charger car sign. isolated symbol illustration. Compressor vectors Car battery charger car icon doodle illustration. Car battery charger car doodle icon sketch vector. car battery charger car sign. isolated symbol illustration
Free with trial Car cover accessory icon doodle illustration. Car cover accessory doodle icon sketch vector. car cover accessory sign. isolated symbol illustration. Compressor vectors Car cover accessory icon doodle illustration. Car cover accessory doodle icon sketch vector. car cover accessory sign. isolated symbol illustration
Free with trial Wall air conditioner on a cutout PNG transparent background. Wall air conditioner on a transparent background and white background. Compressor vectors Wall air conditioner on a cutout PNG transparent background. Wall air conditioner on a transparent background and white background
Free with trial Line art illustration of a paint spray gun. Simple black and white outline of a paint spray gun, ideal for icons, manuals, and instructional materials. Compressor vectors Line art illustration of a paint spray gun. Simple black and white outline of a paint spray gun, ideal for icons, manuals, and instructional materials
Free with trial Socket set car repair tool color icon vector. socket set car repair tool sign. isolated symbol illustration. Compressor vectors Socket set car repair tool color icon vector illustration. Socket set car repair tool color icon vector. socket set car repair tool sign. isolated symbol. socket set car repair tool color icon vector. socket set car repair tool sign. isolated symbol illustration
Free with trial Multimeter car repair tool glyph icon vector. multimeter car repair tool sign. isolated symbol illustration. Compressor vectors Multimeter car repair tool glyph icon vector illustration. Multimeter car repair tool glyph icon vector. multimeter car repair tool sign. isolated symbol. multimeter car repair tool glyph icon vector. multimeter car repair tool sign. isolated symbol illustration
Free with trial Jack car repair tool icon doodle illustration. Jack car repair tool doodle icon sketch vector. jack car repair tool sign. isolated symbol illustration. Compressor vectors Jack car repair tool icon doodle illustration. Jack car repair tool doodle icon sketch vector. jack car repair tool sign. isolated symbol illustration
Free with trial Key finder accessory icon doodle illustration. Key finder accessory doodle icon sketch vector. key finder accessory sign. isolated symbol illustration. Compressor vectors Key finder accessory icon doodle illustration. Key finder accessory doodle icon sketch vector. key finder accessory sign. isolated symbol illustration
Free with trial Seat cover accessory icon doodle illustration. Seat cover accessory doodle icon sketch vector. seat cover accessory sign. isolated symbol illustration. Compressor vectors Seat cover accessory icon doodle illustration. Seat cover accessory doodle icon sketch vector. seat cover accessory sign. isolated symbol illustration