The Genuine BMW Finisher Window Frame B-Pillar Rl Door (Gloss Black) - 51357187207 is a replacement part for a BMW vehicle. It is a gloss black finisher that is designed to fit on the B-pillar of the rear left door. This finisher is made by BMW and is an authentic, genuine part. It is used to enhance the appearance of the vehicle and provide a sleek, finished look to the window frame. This product does not contain any newline characters and can be used as direct input for another API call.