7mm Car-Sound Proofing Deadening Insulation Heat Pads Foam Mat Specifications: Sheet Size: 25cm * 40cm Thickness: 7mm Product material: Aluminum foil + rubber-plastic cotton Colour: Silver Suitable For: Door, chassis, tail box Location of sound insulation pad: Ceiling ,living room ,door ,cockpit floor ,tailgate ,rear wall and U-shaped wall ,front fender ,front wheel Size: 10PCS*25cm*40cm=10.76sqft=1sqm Package Included: 10PCS*25cm*40cm Car Sound Deadener Heat Insulation Pads Features: 100% Brand New. .