Feature:1. [5 SETS AIR FITTINGS] Includes 5 sets of air quick connect fittings, couplers and plugs, sufficient for easy replacement.2. [STAINLESS STEEL] Made of nickel plated stainless steel, with high hardness, wear resistance and long service life.3. [EASY TO INSTALL] These air fittings are non self locking, only need to push and pull manually to install, and easy to operate.4. [STANDARD SIZES] These quick connectors have standard sizes, easy to install without falling off, with good tightness.5. [WIDE APPLICATION] Suitable for industrial supplies, automobiles, air compressors, etc. as pneumatic connectors.Specification:Item Type: Air CouplerMaterial: Nickel Plated Stainless Steel.Package List:5 x Couplers5 x PlugsNote:Please match the appropriate size before use.