Features: Good Material: Made of alloy chromium plating, this stem cap is heat-resistant, rust proof and durable, which will protect and decorate your car. Universal Fit: The Car tire valve caps are compatible with all standard valve stem, including cars, SUV, trucks, RVs, bicycles, bikes and other motor vehicles, etc. Easy to Install: The package includes 4pcs air nozzle caps and a tool, which makes the installation very simple and convenient. Warm Tips: We recommend you to wipe the valve element clean and keep it dry without water, oil or dust. Open the original valve cover anticlockwise with a wrench and tighten the product clockwise. Quality Assurance: Our product will definitely win your heart with its quality! If you have any inquiries, please contact us. Specification: Material: Alloy Chromium Plating Cap Size: 12.7*13mm Inner Diameter: 8mm Include: 4 * Air Nozzle Caps 1 * Tool