Feature: Sound insulation and heat insulation. Easy to cut, peel, and apply. Fit all kinds of vehicle types. Self-sticking backing and waterproof, dustproof, flame retardant. Placement of Using: Hood, Ceiling, Door, Cockpit Floor, Tailgate, Firewall and U Type Wall, Front and Back Wheels. Specification: Color: Silver Tone, Material: Aluminum Foil, Closed Cell Foam, Total Coverage Area: 6.5 sqft, Thickness: 10mm / 0.39 inch / 394mil, Mat Size: 100x60cm / 39.37"x23.62"(L*W). Note: Not to be applied directly to heat source including: exhaust pipes, mufflers or hot pipes. How to Installation: Decide which part you want to insulate first: car roof, car floor, car doors or a hood. Remove the panels. Properly clean and degrease the surface prior to installation of mat. Measure the pre-cleaned surface of the prospective spot that you are going to treat. Try to locate the piece of material onto the prospective surface of a car without removing an adhesive paper. When your sheet is ready to used, lay that down to the surface. Flatten the sheet with hands to avoid air bubbles. Then use a roller tools will make insulation materials and sheet metal firm fit. Installation Notices: Do not cover the chassis wiring or air holes when you installation. Appropriate use of adhesive tape will strengthen connections effect. It would be good to wear the gloves when working. You could heat it to make it soft, then compacted by hand. According to the effect you want choose construction program, only single Soundproof/Damping Plate or single Heat Noise Insulation Cotton or Both them. Package Include: 1 x Sound Deadener Mat.