Genuine Audi Accessories ZAW071215 Carbon Fiber Valve Stem Cap with Rings Logo Valve stem caps are made from ABS in satin finish with an O-ring seal Each cap features a carbon fiber composite logo with a clear polyurethane dome to enhance as well as add protection The caps are designed to fit all standard automotive air valves and are compatible with most TPMS (Tire Pressure Monitoring System) As they are light, they will not affect tire balance