The Genuine Porsche Disc Brake Pad Shim is a small metal plate that is used to provide a secure fit and proper positioning for brake pads on a Porsche 996 model. It is designed to be placed between the brake pad and the caliper to prevent any unwanted movement or noise. This shim is an original Porsche part, part number 99635208600, and is specifically made for this model to ensure optimal performance and safety.