The COPIC Airbrushing Layout System is the perfect means to easily integrate airbrush effects such as gradients and halftones into layouts and illustrations. Airbrushing with COPIC is practical: The marker is simply inserted into the Air Grip (spray cap), connected to compressed air can or compressor and away you go. For the color change, the markers are just reconnected. The system is environmentally friendly: The propellant gas for the Air Cans is chlorine-free and non-flammable.