Iwata-Medea Revolution CR Dual Action/Large Gravity Feed Cup An internal mix, dual action top-feed airbrush with ergonomic handle design with a 1/3 oz (.9 ml) Gravity-Feed well Larger nozzle and needle combination (0.5-mm) that makes for easier spraying of thicker or heavier paints Redesigned trigger mechanism and larger needle-chucking nut for easy assembly Replaceable internal solvent-proof PTFE needle packing for use with solvent or water based paints