The Marker Air-Brushing System Starting Set helps you add beautiful finishing touches. It's made for use with Markers & Sketch markers & is lightweight & portable. A no-mess system, simply attach the spray head to a Air Can or your own compressor, slide the sketch marker in the spray head & you're ready to go! This package contains one air grip, one air can 180, one air hose, one air adapter (1/8in), one air can holder, & instructions. Contents under pressure. Markers & Sketch Markers sold separately.