1 roll of 20mm for car hood, firewall, heating carpet, soundproofing, sound insulation, soundproofing foam 100x50cm 50x50cm Characteristics: The soundproofing pads in the shape of a wave have the same properties as Rubber foam and excellent acoustic insulation properties. It absolutely does not absorb water, not different from polyurethane foam. It is very light and oil resistant. Good interior thermal insulation can improve vehicle comfort. If your car is equipped with a powerful engine and an improved exhaust system, the material of thermal lining shields will solve the problem of overheating. where to use the soundproofing pads: A. hood B.celling C. Door D. Cockpit floor E. Rear door F.Firwall and U Type Wall J.Front Fen-Der H. front and rear wheels. Easy to install/Handle/Flexible cut, suitable for different models. Perfect for the car, apartments, condos, studios, classrooms, factories, etc. Specifications: Thickness: 20mm/0.8 '' Size: approx.100x50cm/39.37 ' 'x 19.69' ', 50x50cm/19.69' 'x 19.69' '(optional) The package includes: 1x carn carpet Note: Please accept 1mm errors due to Manual measurement. Due to the difference between the different monitors, the image may not reflect the real color of the article.