Micro-Mark Airbrush Paint Feed Adapter for Micro-Mark Paints allows standard 20 ml (0.67 oz.) paint bottles from Micro-Mark paint line to attach directly to the airbrush body. Use it in place of the detachable fluid cup on gravity feed airbrushes to change colors in an instant, with less mess and easier cleaning! Works with Micro-Mark Self-Contained Portable Airbrushes, Tamiya Spray-Work HG Wide Airbrush, Grex Tritium Series Airbrushes, and other brands with M6 x .75 cup thread pattern. Set of 5 reusable adapters. Note: these will not fit Vallejo paint bottles. These are designed for use with the Micro-Mark paint line only. For Vallejo adapters, see part #90833.