COPIC Marker Airbrush System - Mini Air Compressor Hose - Your favorite COPIC markers can easily become an airbrush. Copic markers and Sketch markers both work with the Airbrush System. Simply insert the standard broad or medium broad end of a Copic marker or Sketch marker into the air grip. The air grip can be hooked up to an air compressor or used with a special air can. Changing colors is as easy as switching markers.