Item Type: Air Coupler Material: Nickel Plated Stainless Steel Package List 1 x Air Coupler 1 x Plug Please match the appropriate design size before use. 1[AIR COUPLER PLUG KIT] Including an air coupler and a plug, used together with a wide range of applications. 2[STAINLESS STEEL] Made of nickel plated stainless steel, wear resistant and corrosion resistant, not easy to deform. 3[SELF LOCKING] The air fitting kit is self locking design, with plug in connection, easy to install and remove. 4[STANDARD SIZE] This air coupler has standard size, not easy to fall off after installation, with good tightness. 5[MULTIPLE USAGES] Ideal for use as pneumatic connectors in industrial supplies, automotive accessories, etc.