Fitment: Universal fit for auto, cars, trucks, motorcycles, bicycle valve stem cap. Specification: Dimension: 16x9mm/ 0.63'x0.35' (H*D); Hole Diameter: 7mm/0.28' Material: The tire valve caps are made of aluminum alloy, dustproof and waterproof, can prevent water, dust, sand, or something else from coming into the tire, and prolong the tire service life. Easy Installation: No other tools are required, convenient to grab and tighten. Package Included: 12 x Tire Valve Stem Caps