Convenient Inflation: The tire valve extension has a length of 150 mm, which is very suitable for tires that are difficult to reach with an inflation valve. Tips: You must first connect the valve extension adapter to the pump, and then screw it onto the tire valve to prevent gas leakage from the tire. High-quality materials: The tire valve extension is made of high-quality rubber and pure copper, which is durable, wear-resistant, and has a long service life. Wide application: The flexible tire valve extension hose is suitable for all cars, trucks, RVs, motorcycles, bicycles, scooters, etc. with standard tire valves and is compatible with American valves. Easy to use: The rubber tire valve extension base can be rotated, and the rubber is soft and flexible, which can be directly connected to the tire, which is very convenient to use.