"Product Material: Pure copper Size: 40mm Style: 90 degree, 135 degree Bottom outer diameter: 10mm Bottom internal thread : 8V1 Main Male Thread: 8V1 Color: Silver Usage: American Valve Quantity: 2nd Package Contents: 2pcs * Metal Extension Rod 1 "SealAll tire valve extensions are equipped with rubber seals and metal valve caps, providing easy access for tire maintenance and making it easier to check and inflate your dual tires. longer service life. 2.Quality and DurabilityMade of copper material, with nickel plating on the surface, sturdy and durable, not easy to tear. rust or erode, abrasion resistant abrasion resistant, heat, the collision is not easy to burn; damage. 3. Wide range of applications This valve extender car valve is suitable for; all cars, trucks, RVs, motorcycles, trailers and recreational vehicles with standard tire valves. 4. Easy to use. UsageThe bottom of the truck brass valve extension rotates freely for easy installation. The integrated core allows for inflation and deflation. Simply remove the existing valve lock and then activate this tire valve extension."