The Genuine BMW Finisher Window Frame B-Pillar Rl Door (Black) - 51357136955 is a replacement part for a BMW vehicle. It is designed to be installed on the B-Pillar of the rear left door and serves as a finishing piece for the window frame. The finisher is made of high-quality materials and has a sleek black color that matches the rest of the vehicle's interior. This product is an authentic BMW part and is specifically designed to fit and function perfectly on BMW vehicles. It is a durable and reliable replacement for a damaged or worn finisher and will help maintain the overall appearance of the vehicle.