The Genuine BMW Insert Bumper Rear (M) - 51128058758 is a replacement part for the rear bumper of BMW vehicles. It is made by the original manufacturer and is designed specifically for BMW models. This insert is meant to be placed on the rear bumper and has the M logo, indicating it is a part of BMW's performance line. It is a durable and high-quality product that is made to match the original design of the vehicle. This insert is an essential component for maintaining the appearance and functionality of the rear bumper on BMW cars.