Features: Made of aluminum alloy, treated with the process of turning, milling, surface-treatment, assembly. Explosion-proof, sturdy-and durable, beautiful and ncie, high temperature resistant, corrosion resistant and easy to install. Specially designed for tire valves, tightly fastened and-safer. Prevent the valve mouth from being corroded by clay or snow, which will leak after pumping. The tire cap is-not easy to fade, anti-corrosion and anti oxidation, and improves strength and durability. The sealing ring-pad prevents air leakage, so you can confidently and safely ride in a-stylish way. Specifications: Material:Aluminium Alloy Size:As Picture Shown Color: Black/Blue/Gold/Titanium-Red Note: .Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. .Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thanks for your understandings. Package includes: 4x Car Tubeless Wheel Tyre Valve Stems