The Genuine BMW Sound Insulation For Upper Partit.Trunk - 51489163105 is a high-quality sound insulation product designed specifically for the upper part of the trunk in BMW vehicles. It is made from durable materials and is designed to reduce noise and vibrations from the trunk area, providing a quieter and more comfortable driving experience. This sound insulation is an official BMW product and is compatible with various BMW models. It is easy to install and helps to improve the overall sound quality of the vehicle.