This is a convenient and practical sound insulation cotton made of aluminum foil and NBR. It is efficient and practical. It can effectively reduce the noise of the car engine, and the heat insulation block can reduce the heat of the engine from the exhaust to the cab, reducing the air conditioning performance. Consumption, save fuel. Its application method is simple, and has a certain absorption effect, which can provide you with more comfort. Features -Color: Silver. -Material: Aluminum Foil, NBR. -Size: About 200.00X100.00X0.80cm/78.60X39.30X0.31inch. -It is made of safe and mild materials and can be used in many occasions. -This product has a good sound insulation and noise reduction function to provide you with comfortable driving environment. -The product has a wide range of uses, in addition to car engines, it is also suitable for many places where sound insulation is required. -Easy to apply, professional and practical, can well meet your needs and provide you with more convenience. -The heat insulation block reduces the heat of the engine from the exhaust to the cab, reduces the energy consumption of the air conditioner, and saves fuel. Package list: 1 x Soundproof Panel