4 Easily installs, fit all kinds of vehicle type Material: Alumina fiber+ Muffler cotton. Application: Firewall/rear decks - To reduce engine, road, and transmission noise while dissipating heat. Heat Proofing Shield Sound Deadener Block Mat Sound Door Bonnet Trunk 160"x39".Clean the dust and oil which cover the automobile engine 2. Trim engine cover size well before the coherence 3. Remove the isolation paper and stick the heatinssulation pad in the angine covers 4. Finally press it evently, especially pay attantion to nearby theaaquare and the traiang concave-convex position. Automotive Sound Control Sound Deadener. Auto insulation proofing acoustic heat. The item "Heat Proofing Shield Sound Deadener Blocker Mat Door Bonnet Trunk 160 x 39" is in sale since Wednesday, April 24, 2019. This item is in the category "eBay Motors\Parts & Accessories\Car & Truck Parts\Interior\Floor Mats & Carpets". The seller is "cathycat705" and is located in Baldwin Park, California. This item can be shipped to United States.