🚲 HIGH QUALITY: This is a set of 4 tire valve stem covers made of aluminum alloy, they also help protect the valve stem from wear and have a beautifully anodized finish that gives it a long lasting finish. | 🚕 SAFETY FEATURES: These stem caps are a great way to keep your tires in good shape. They are made of durable materials and are hermetically sealed to keep moisture and debris out | 🚌 Stylish Design: Uniquely designed to fit your style and look great on your tires Adds a stylish touch to your tires, won't fade or rust, tire air caps are 0.31 inches inside diameter and 0.54 in height inch. | 🛵 WIDE COMPATIBILITY: Tire Stem Caps for Cars, SUVs, Bicycles & Bicycles, Trucks, Motorcycles | Heavy Duty Airtight Seals. | 🚙 Simple installation: Simple screw-in thread design, easy to tighten or remove