Usage Tips:[Function]: Quick connect adapter can transfer air from a tank to , transfer gas from a large bottle to a smaller portable bottle, or connect with an air tank when using two filling adapters. [Accuracy]: Adopt NC process, high precision, suitable for M11x1 male thread and 8mm female thread converter, reliable and no leakage. [Material and Size]: female external quick disconnect plug is made of stainless steel, and the length is 27mm/0.96 inch. [Working rating]: 3000-5000psi working pressure, temperature resistance is 1000°C. [Installation and Application]: Simply connect each filling adapter to the quick disconnect air tool fittings and the inflatable cylinder fitting to the high pressure hose Colour:Silver Material:Stainless steel Package Contents: 2 x Quick-Disconnect Plug Adapter(Female Thread and external Thread) Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.