Description: 100% Brand New. Made Of Heat Treated Hardened Steel For Strength And Durability. Zinc Plated Finish For Rust And Erosion Resistance. Reduces Accidental Airline Disconnection. Material: Titanium Alloy Specification: Size: 8*12mm/0.31*0.47inh 5*8mm/0.20*0.31inch Package Includes: 2 Pieces Air Line Hose Fittings