Product description Material: pure copper Size: 40mm Style: 45 degrees, 90 degrees, 135 degrees Bottom outer diameter: 10mm Bottom internal thread: 8V1 Main external thread: 8V1 Color: yellow, silver Application: American valve Quantity: 2pcs Package content: 2pcs * metal extension rod 1. 【Excellent sealing properties】The tire valve extensions are all equipped with rubber gaskets and a metal valve cap, which allows easy access for tire maintenance and makes it easier to check and inflate your dual tires. The valve extension improves sealing, is dustproof, waterproof and has a longer service life. 2. 【Quality and durability】Made of copper, with nickel plating on the surface, robust and durable, not easy to rust or erode, wear-resistant, heat-resistant, collision is not easy to damage. 3. 【Wide application】This valve extension car valve is suitable for all cars, trucks, motorhomes, motorcycles, trailers and recreational vehicles with standard tire valves. 4. 【Easy to use】The bottom of the truck brass valve extension rotates freely for easy installation. The built-in core allows inflation and deflation. Simply remove the existing valve cap and then snap on this tire valve extension.