Valve Adapter Material: Our motorcycle valve adapter is made of high-quality rubber and pure copper, which is strong and durable, not easy to rust or corrode, wear-resistant, heat-resistant, and not easy to damage. Therefore, ensuring durability can take a long time. EASY TO INSTALL: The bottom of the brass truck valve extension can be rotated freely, which is easy to install. The built-in core allows for inflation and deflation. Simply remove your existing valve cap and screw on this tire valve extender. Rubber Valve Extender: The auto valve of the valve extender can be lengthened by extending the inflation nozzle. This is very useful for tires that are difficult to reach with the inflation valve. A tire valve extender is a very practical tool for inflating your tires. Wide range of applications: This bicycle valve extender is suitable for all cars, trucks, motorcycles, RVs, trailers, and campers with standard tire valves.