Product Material: pure copper Size: 40mm Style: 45 degrees, 90 degrees, 135 degrees Bottom outer diameter: 10mm Internal thread at the bottom: 8V1 External thread of head: 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 seals and a metal valve cap, allows easy access for tire maintenance and makes it easier to check and inflate your twin tires. Valve lengthening improves sealing, dustproof, waterproof and longer life. 2. Quality and durability Made of copper, with nickel plating on the surface, sturdy and durable, not easy to get rust or erosion, wear-resistant, heat-resistant, collision is not easy to damage. 3. Wide range of applications This valve extension car valve is suitable for all passenger cars, trucks, mobile homes, 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 enables inflation and deflation. Simply remove the existing valve cap and then turn on this tire valve extension.