4pcs- Stems Cap Knurling- Car Tire Air Valve. Features: Note: Please Replace These Aluminum Wheel Air Valve Covers Monthly to Avoid Unwanted Oxidation and Adhesion Due to Direct Sunlight 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 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. Size: Diameter is 1.1 Cm, Height is 1.7 Cm, Can Fit Your Tires Well with Complete O-ring Seal, Dustproof and Waterproof . 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. This Set of Wheel Air Valve Covers Fits for Many Kinds of Vehicles with American Valves Caps, Such As Cars, Trucks, Motorcycles, Bicycles, Electro Mobile, Etc.  Specifications: Size (LWH): 1.1 X 1.1 X 1.7 Cm/ 0.43 X 0.43 X 0.67 Inch Material: Aluminum Model Number: C0639 Package Includes:   4Pcs/Set x Tire Valve Caps . We are an international seller, your order will be shipped from abroad so please allow the necessary time of minimum 14 working days for delivery right now depending on where you ship to, due to ongoing delays in postal deliveries globally.