Features: Made of tin-plated iron to resist rust, corrosion resistant and durable in use. These quick connectors were designed for convenient connection and disconnection of pipes. High compressive strength, good performance and high reliability. These air hose quick coupling are mainly used for pneumatic tool, easy to achieve the connection or disconnection of piping without other tools. Widely applied to pneumatic tool, auto industry, air compressor, 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) Note: Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering.