Astra Depot Custom Chrome Silver Skull Tire Air Stem Valve Cap Cover Set For ATV Car Hotrod Ratrod SUV Truck Cadillac Chevrolet Ford Dodge GMC Toyota Honda Nissan Subaru (Pack of 4, Style 4) Help to prevent leakage, dirt and other objects from damaging cores. Give your vehicle a clean and cool style. Waterproof and dustproof. A skull shape can make your car look more attractive and special. Direct Replacement, No Modification needed.