General purpose universal tapered conical rubber foot bumper: Includes 1 premium rubber bumper. Measures approximately: outside diameter (at bottom) 20.5mm (0.8"); large hole diameter 8mm (0.31"); small/screw hole diameter 4mm (0.2"); height: 12mm (0.47") Genuine Red Hound Auto quality, perfect for many applications. Made from durable premium grade rubber.