The Genuine BMW Upper Belt Rear Left (Black) - 72117233539 is a high-quality replacement part for BMW vehicles. It is designed to be installed on the rear left side of the vehicle and is made from durable materials to ensure long-lasting performance. This upper belt is an essential component of the vehicle's safety system, as it helps to secure passengers in the event of a collision. It is an authentic BMW product and is designed to meet the exact specifications of the original part. This upper belt is black in color and has the part number 72117233539.