The Genuine BMW Supporting Ring Black Left (ShadowLine) - 51167327913 is a high-quality, OEM replacement part for BMW vehicles. This supporting ring is designed to be used on the left side of the vehicle and features a sleek black finish to match the ShadowLine trim. It is made from durable materials to ensure long-lasting performance and is an exact fit for your BMW. This supporting ring is an essential component for the proper functioning of your vehicle's exterior and is a genuine BMW part, ensuring the highest level of quality and reliability.