The Genuine BMW Sound Insulation Floor Rear - 51489113811 is a high-quality soundproofing material designed specifically for the rear floor of BMW vehicles. It is made from durable and lightweight materials that effectively reduce road and engine noise, providing a quieter and more comfortable driving experience. This product is an authentic BMW part and is designed to fit perfectly in compatible BMW models. It is an essential component for enhancing the overall sound insulation of the vehicle and ensuring a more enjoyable driving experience.