The Genuine BMW Cover Side Window Defroster Left - 51457059215 is a high-quality cover designed specifically for the left side window defroster of BMW vehicles. It is made from durable materials and is designed to fit perfectly over the defroster, providing protection and enhancing the overall appearance of the vehicle. This cover helps to prevent damage to the defroster and ensures that it functions properly. It is an essential component for maintaining the functionality and aesthetic of the BMW side window defroster.