Fits airbrushes and hoses with 1/8 size fittings such as Iwata Devilbiss Master Airbrush and many other popular brands The Quick-Release Action allows you to quickly change airbrushes when you use multiple airbrushes with a single air supply hose Coupler Body: Standard 1/8 BSP Male Fitting Threads Coupler Plug: Standard 1/8 BSP Female Fitting Threads Male Nipple Tail 5mm Automatically shuts off air flow from the hose when disconnected Connects and disconnect by simply pull back the spring-loaded sleeve to either connect the plug or to separate the plug Coupler allows the nipple plug to swivel to prevent hose kinks