Features Durable: made of tin-plated iron, rust-proof, corrosion-resistant and durable. Easy to use: These quick couplings are designed to facilitate connection and disconnection of pipes. High quality: high compressive strength, good performance and high reliability. Practical tools: These air hose quick connectors are mainly used for pneumatic tools, and pipes can be connected or disconnected easily without other tools. Scope of application: widely used in pneumatic tools, automotive industry, air compressors, mechanical engineering, etc. Specifications: Material: Iron (Tin-plated) Color: Silver Quantity: 8pcs Thread: BSP 1/2" Male Thread Install form: SP, PP, SH, PH, SM, PM, SF, PF Weight: Approx. 514g Package Included: 1 x 1/2"BSP Male Thread Quick Coupler Plug 1 x 1/2" BSP Male Thread Connector Socket 1 x 1/2 "BSP Female Thread Quick Coupler Plug 1 x 1/2" BSP Female Thread Connector Socket 1 x 1/2" Barb Quick Coupler Plug 1 x 1/2" Barb Connector Socket 1 x Quick Coupler Plug (8 x 12mm) 1 x Connector Socket (8 x 12mm) Package List