Can replace the original valve cap of the tyre and show the beauty characteristic of the tyre. Unique anti-theft design, also to prevent being maliciously deflated. Skull pattern valve caps add the finishing touch in your wheels. Specifications: 1. Material: 100％ copper material. 2. Size: height approx 12mm, diameter approx 11mm. 3. Color: silver. Package Included: 8 * valve caps.