Features 1、Unique Design: 4 stem caps, crown shape plus sparkling diamond design to personalize your wheel and make it stand out. 2、High Quality Material: The valve stem cover is made of high polymer ABS material, with a copper core inside and a sealing ring embedded to ensure proper fit. 3、Improve Driving Safety: The valve stem cover can prevent the valve core from directly contacting clay, water and snow, ensuring stable tire pressure and preventing tire blowouts. 4、Universal Wheel Fittings: No rust, light weight, direct replacement for worn or damaged ones, suitable for cars, trucks, bicycles, etc. 5、Long Durability: Simple installation and easy replacement, just screw on the valve stem. Wear resistant, strong and durable for outdoor use. Specification Item Type: Wheel Stem Valve Caps Material: High polymer ABS, inner copper core Application: Universal for cars, trucks, bicycles. Package List 4 x Wheel Stem Valve Cap