This product is a genuine BMW finisher for the window frame on the top rear right door. It is designed with a glossy black finish and has a part number of 51357185244. This finisher is made specifically for BMW vehicles and is a high-quality replacement part. It is durable and designed to fit perfectly on the window frame, providing a sleek and stylish look to the vehicle. This finisher can be used on the right rear door of the vehicle and is an authentic BMW product.