[Easy to use]: The size of the sound insulation pad is 100*100CM which can be cut as needed, glued on the back, tear off the protective paper, and stick where needed [Multifunctional]: Our sound deadening mat has the same characteristics of foam and excellent sound insulation performance. It absolutely does not absorb water and has no peculiar smell. It is very lightweight, fireproof, and waterproof. [High-quality material]: The car soundproofing is made of an excellent insulator. The soundproofing material allows you to cope with the cold and heat. This is especially important in hot climates. The well-insulated interior ensures a high degree of comfort when the vehicle is driving. If your car is equipped with a powerful engine and an enhanced exhaust system, then the inner lining insulation material will solve the overheating problem. [Anti-squeeze]: The sound-absorbing pad is composed of three layers, the surface layer is a glass fiber and aluminum foil, the middle layer is high-density sound insulation cotton, and the bottom layer is a self-contained strong adhesive. Precise workmanship greatly improves the sound insulation effect and resistance to compression deformation. [Wide use]: Sound insulation pad location: A. Ceiling B. Living room C. Door D. Cockpit floor E. Tail door F. Rear wall and U-shaped wall J. Front fender H. Front wheel.