[High Quality Material] The hose coupling is made of heat-treated hardened steel and the surface is galvanized for strong strength and durability. [Advantage] Spring loaded quick release couplers for use on the compressor side have a valve built in to prevent air escaping while changing between tools. [Simple To Use] Just slide the collar back and insert the fitting, then slide the collar back to the position lock to allow the tool and airline hose to quickly connect or disconnect. [Widely Application] Suitable for pneumatic tools, air compressors, air nail guns, air guns, high pressure cleaners, air hoses and more. [Package List] Comes with 2pcs pneumatic connectors, for pneumatic tools connector, air compressors, air pipes package., Weight: 0.1984160358 pounds, Manufacturer: Jenngaoo