Description: *1. 100% brand new and high quality. *2. Effectively prevent the unsafe factors caused by car valve puncture. *3. Closure design, easy to carry and use. *4. Easy to install. *5. Suitable for steel or alloy wheels on cars, trucks and motorcycles. Specifications: Material: rubber+copper Color: Black Type: TR412 Product size: 36*19mm Thread Diameter: 7.5mm Installation steps: 1. Remove the valve core to deflate the tire; 2. Separate your toe from the tire and remove it from the rim; 3. Remove the valve and clean the holes and dirt from the edge; 4. Install a new valve from inside the rim; 5. Install the tire correctly and inflate to nominal air pressure; 6. Replace the valve cap with a new one. Package Contents: 10PCS/25PCS/50PCS Tubeless Tire Valve Stems Note: (1) All pictures are professionally colored, but due to the different ambient light and different display device settings, there may be some deviations between the pictures you see and the items themselves. Please understand. (2) The data is measured manually, and there may be some deviation, but it does not affect the use. Return Policy All of our items come with a 30-day free return policy. If you need to return, please contact us, let us know the detailed problem and send us some pictures for confirmation. We reserve the right to refuse any returns for objective reasons. Shipping Policy All of our items are shipped free with tracking numbers. Orders will be shipped within 3 working days upon receipt of payment. Most orders will be shipped within 1 working day. In most cases, shipping takes 8-12 working days.