The Genuine BMW Outer Weatherstrip Rear Left Door (Gloss Black) - 51357185239 is a high-quality replacement part designed specifically for BMW vehicles. It is made from durable materials and has a glossy black finish that matches the original design of the car. This weatherstrip is located on the outer edge of the rear left door and helps to seal the door against the elements, preventing water, dirt, and noise from entering the vehicle. It is an essential component for maintaining the overall integrity and functionality of the door. This product is an authentic BMW part and is guaranteed to fit and function perfectly in your vehicle.