Size: 3mm/5mm/8mm/10mm Thick L*W=100cm/40"x 60cm/24=6.46sqft L*W=100cm/40"x 100cm/40=10.76sqft L*W=152cm/60"x 100cm/40=16.36sqft Point: 1.Easily installs,fit all kinds of vehicle type.Self sticking backing & Waterproof,dustproof. 2.Strong sound insulation and absorption performance,heat insulation, damping and antisepsis 3.Excellent noise insulator properties as rubber foam. It absolutely doesn"'"t absorb water & has no odor unlike polyurethane foam. It has a very low weight, oil and petrol resistant. 4.Slow down the car paint ageing.Because of hot weather, the front outer cover through the direct sun, high temperature inside and outside the engine, accelerated paint aging 5.Keeps Heat In-Cold Out in the Winter, Keeps Cold in-Heat Out in the Summer.In the winter, the engine temperature is very high, but outside is very low when driving, which make car parts damaged easier Description: This easy to install car sound deadening foam is ideal for roofs, doors, wheel arches, boot and parcel shelf applications. Once fitted this product will improve the ride quality in your vehicle by reducing engine noise, tyre whine, road noise, wind noise and will significantly improve the overall vehicle refinement and sound quality. As well as improve the vehicle acoustics this high performance closed cell foam will ensure your vehicle stays cooler in the summer and warmer in the winter, making your ride more comfortable. Adhesive backed black closed cell foam insulation High noise reduction & thermal insulation properties Used by luxury vehicle manufacturers Excellent for sealing against water and air ingress Highly compressible closed cell foam formulation