Luminous: This tire valves stem caps are made of Luminous Material, Give car unique luxury look, with beautiful dazzling.Tire Valve Stem Cap: This valve caps protect the valve, prevent the water, dust or sand into the tire; also prevents the valve from leakingWidely used: Diameter:13.68mm/0.54inch,Height: 16.45mm/0.65inch , Inner Diameter:8mm/0.31inch, universal size fits cars, bus trucks, SUVs, motorcycle, bike or vacuum tire valve capsEasily to Install: This Valves stem caps be easily tightened use hand, simple and convenient.Compact: Portable and durable, easy to carry, lightweight, decorate wheels.Size Chart:Diameter:13.68mm/0.54inchHeight: 16.45mm/0.65inchInner Diameter:8mm/0.31inchPackage Includes:4 Pieces Car Tire Valve Stem Caps(6 Pack)Note:Please allow slightly errors due to manual measurement and different monitors.