High quality material: They are made of aluminium alloy body with lock nut, which is extremely durable, and it will not crack or deteriorate due to weather conditions High quality material: They are made of aluminium alloy body with lock nut, which is extremely durable, and it will not crack or deteriorate due to weather conditions Easy to use: 90 degree tubeless snap-in valves for inflation and checking of air pressure, very convenient; It comes with rubber seal, it can effectively avoid Easy to install: Fixed the side with lock nut, will not crack or deteriorate due to weather conditions Widely applicable: This universal extension will fit all passenger car, light and heavy trucks, motorcycles and recreational vehicles with standard tire valves Portable design: The tire valve stem is a necessary tool for travel use; valve applicable models: cars, motorcycles, electric cars, etc