SPECIAL DESIGN: The tire valve stem caps come with metal shell and plastic insert, which combines the attribution of corrosion resistance of plastic and the stylish look of metal PREMIUM MATERIAL: Constructed from premium lightweight aluminum alloy, GLIDESPARK tire value caps features an anodized and powder-coated finish to ensure supreme strength and longevity. The surface undergoes an anodic oxidation treatment, which enhances the vibrancy of the color EASY to INSTALL & LEAK-PROOF: With the smooth horizontal stripes design, the valve stem caps are easily hand tightened when install or remove. The plastic liner incorporates a one-piece seal to prevent leaks, shielding the car from tire puncture damage WIDE COMPATIBILITY: The inner diameter of our tire air caps is 7mm, and the inner height is 13.8mm. Universal for cars, SUVs, trucks, RVs, bicycles, bikes, and other motor vehicles Why GLIDESPARK: GLIDESPARK Valve Stem Caps tackle the issue where materials suitable for the cap's exterior might interact unfavorably with those typically used for valve threads Product Description