Double-Action Airbrush kit,The spray gun allows users to determine the quantity of air and paint released with simply fingers' moves. Cup Capacity:7cc, 22cc; Need to work with air compressor that is not included. The Airbrush gun has a variety of uses. It's perfect for Airbrush, airbrush tattoos, nail design, Art drawing, Body painting, Cake decoration and much more. Dual-action Trigger Air-paint control device. It allows users to determine the quantity of air and fluid released with simply fingers' moves. Please debug the airbrush to the best state, and then use clean water to test.