4Pcs Aluminum Car Wheel Tire Valve Caps Tyre Rim Stem Covers Airdust Waterproof For Automobiles Motorcycles Trucks Bikes//Feature: 1. Note: please replace these aluminum wheel air valve covers monthly to avoid unwanted oxidation and adhesion due to direct sunlight 2. Sturdy and durable: these wheel air valve covers are made of aluminium alloy, hard and durable, the shape is not easy to change even if it gets pressure 3. Sealed shape: the valve stems covers are complete o-ring seal, so it can prevent water, snow, and dust from coming into the tire, thus prolong the tires service life 4. Wide application: this set of wheel air valve covers fits for many kinds of vehicles with American valves caps, such as cars, trucks, motorcycles, bicycles, electromobile, etc. 5. Can fit your tires well with complete o-ring seal, dustproof and waterproof . Sealed shape: The valve stems covers are complete o-ring seal, so it can prevent water, snow, and dust from coming into the tire, thus prolong the tires service life. Wide application: This set of wheel air valve covers fits for many kinds of vehicles with American valves caps, such as cars, trucks, motorcycles, bicycles, electromobile, etc. Specifications: Material: aluminium Size:1.6cm*0.8cm/0.63in*0.31in Package includes: 4Pcs/Set x Tire Valve Caps