Description: Luminous: These tire valve caps are made of luminous material, give your car a unique luxurious look, with beautiful dazzling. Tire Valve Stem Cap: Valve caps protect the valve, prevent water, dust or sand from entering the tire; Also Prevents Valve Leaking Widely Used: Diameter: 13.68mm/0.54inch, Height: 16.45mm/0.65inch, Inner Diameter: 8mm/0.31inch, Universal Size Fits Car, Truck, SUV, Motorcycle, Bicycle, or Vacuum Tire Valve Caps Easy Installation : valve caps can be easily tightened by hand, simple and convenient. Compact: portable and durable, easy to carry, lightweight, decorative Size table: Diameter: 13.68 mm/0.54 inch Height: 16.45 mm/0.65 inch Inner diameter: 8 mm/0.31 inch Package includes: 4 pieces car tire valve stems Note: Please allow slight errors due to manual measurement and different monitors.