uxcell 2 Pass Air Hose Quick Connect Metal Coupling Coupler Automatically shuts off air flow from the hose when disconnected. This 2 Pass Air Coupler is designed to simplify multiple tool operations. Screws onto most airbrushes and hoses. Size: ~6.5(L) x 2.4(W) x 5.3(H)cm Package Included: 1 x 2 Pass Quick Coupler