The Genuine BMW Finisher Window Frame B-Pillar Fl Door (Gloss Black) - 51337317789 is a replacement part for a BMW vehicle. It is a gloss black finisher that is designed to cover the window frame on the B-pillar of the front left door. This finisher is an authentic BMW product and is made from high-quality materials to ensure durability and a perfect fit. It is a direct replacement for the original part and is designed to match the look and feel of the rest of the vehicle. This product does not include any newline characters and can be used as input in another API call.