Item Type: Bike Pump Extension Hose_x000D_Product Material: Copper Plating, Nylon_x000D_Compatible: US valve_x000D_Description: Connect the Pump and Nozzle for Easy Pumping 116.6cm Length: The bike pump extension hose can increase the length by 16.6cm in case the existing pump hose is too short to be used 2Double Valve Design: The bike pump extension hose adopts a double valve design, compatible with American valves, which is convenient and easy to inflate 3Durable Material: The bike pump extension hose is made of nylon and copper materials, which are wear resistant, corrosion resistant and stable 4Stable and Reliable: The bike pump extension hose is compact and portable, helping you to inflate your tires quickly and safely 5Simple Operation: Operation is simple and convenient, the bike pump extension hose can be used by connecting the pump and nozzle