The Genuine BMW Loading Sill Cover (part number 51477024863) is a protective cover designed to fit over the rear loading sill of a BMW vehicle. It is made from durable materials and features the BMW logo. This cover helps to prevent scratches, dents, and other damage to the loading sill while loading and unloading items from the trunk. It is an authentic, high-quality product from BMW and is designed to seamlessly integrate with the overall design of the vehicle.