Features: Wave-shaped sound dampening pads have the same properties as rubber foam and excellent sound insulation properties. It absolutely does not absorb water, no different from polyurethane foam. It is very light-weight and resistant to oil. Good thermal insulation interior can improve the comfort of the vehicle. If your car is equipped with a powerful engine and an enhanced exhaust system, the lining heat shields material will solve the problem of overheating. Where to use sound dampening pads: A.Hood B.Celling C.Door D.Cockpit Floor E.Tailgate F.Firwall and U Type Wall J.Front fen-der H.Front and Back Wheels. Easy to install/handle/cut flexible, suitable for various models. Perfect for car, apartments, condos, studios, classrooms, factories, etc. Specifications: Thickness:20mm/0.8'' Size:Approx.100x50cm/39.37''x19.69'', 50x50cm/19.69''x19.69'' (optional) Note: Please allow 1mm errors due to manual measurement. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Package includes: 1x Car Sound Mat