✔ High-quality materials: The sound deadening mat is composed of aluminum foil and rubber-plastic cotton (replace with "rubber butyl, and metal aluminum foil"), and the back is equipped with a high-efficiency adhesive, so it is very convenient to use. ✔ High performance: The sound deadening mat is 10mm thick, which is better than ordinary silencer cushions. It also has the functions of waterproof, moisture-proof, and heat insulation, allowing you to easily cope with wet, cold, and hot weather. ✔ Remove extrusion: The sound-absorbing mat is composed of three layers, the surface layer is glass fiber with aluminum foil (replace with "closed cell acoustic rubber foam"), the middle layer is high-density sound insulation cotton (replace with "metal aluminum foil and pure rubber butyl", and the bottom layer is self-contained with strong adhesive back glue. Precise workmanship greatly improves the sound insulation effect and resistance to compression and deformation. ✔ Easy to use: The soundproofing mat is a universal trim to fit, you can cut it according to your needs, with adhesive on the back, tear off the protective paper and stick it to the place you want. ✔ Wide range of uses: The sound insulation mat is suitable for ceiling/living room/door/ range hood pipe, etc., cockpit floor/tail door/rear wall/U-shaped wall/front fender/front wheel, etc. it is suitable for cars, apartments, studios, classrooms, factories, etc. ✔ Lifetime Warranty: We guarantee that our material will never unpeel or deteriorate for as long as your vehicle lasts, when installed correctly.  ✔ Sound Design: Lowers resonance and unwanted noise to enhance your audio system. ✔ Wide range of uses: This versatile sound insulation mat is suitable for cars, trucks, vans, motorcycles, home theatres, music studios, factories, appliances, and more!