Feature: 1. High noise reduction \u0026 thermal insulation properties. 2. Strong temperature resistance and thermal \u0026 acoustic properties. 3. Made of high-quality rubber and single-sided aluminum foil. 4. Durable outer cover material for terrible conditions. 5. Easy to cut \u0026 fit, strong adhesive backing. 6. Low thermal conductivity, flame retardant material. 7. No water absorption, no condensation. 8. For car hood, door, chassis, air conditioning tube. 9. For recording room, insulation room, etc. 10. Durable outer cover material for terrible conditions car firewall sound deadener. 11. Easy to cut \u0026 fit, strong adhesive backing sound deadener. Specification: Features: High noise reduction & thermal insulation properties. Strong temperature resistance and thermal & acoustic properties. Made of high-quality rubber and single-sided aluminum foil. outer cover material for terrible conditions. Easy to cut & fit, strong adhesive backing. Low thermal conductivity, flame retardant material. No water absorption, no condensation. For car hood, door, chassis, air conditioning tube. For recording room, insulation room, etc. Specifications: Material: Rubber & Aluminum Foil Nominal Thickness: 5mm Color: Silver Placement on Vehicle: Left, Right, Front, Rear Size: 50cm*30cm / 19.7*11.8in Item Weight: 480g / 16.93oz Package Size: Approx. 50*30*6cm / 19.7*11.8*2.36in Package Weight: 490g / 17.28oz Package List: 12 * Sound Deadener Package List: 12 * Sound Deadener