Eteng Double-Action 2CC Gravity Feed Airbrush Pen Spray Gun for Car Painting With 2cc Eye Dropper: dropping ink or other fluid easily High-quality Precision Components: trigger locks safety system. Dual action trigger design allows users to determine the quantity of air and fluid released Removable Needle and Nozzle Cap: spray full range of spraying and stippling effect. Multi-Purpose: perfect for beauty, makeup, manicure, temporary tattoo, cake decorating,painting design (car, bicycle, bike, etc.) and other related Air and Fluid Spray: press the air and fluid control knob down vertically and pull it back.