Soundproofing materials, soundproofing tape for speakers, speaker back vibration damping and sound absorbing material, vibration damping sheet, soundproof foam panel, insulation mat sound absorbing mat sheet, automotive insulation foam, vibration damping material increase + interior panel remover + deadening spatula, luxurious 24-piece set (silver) Brand new, unused. Brand: ZHUBANG Item thickness: 20 mm Manufacturer: ZHUBANG UPC: 705338036874 [Set Contents] Speaker back vibration damping and sound absorbing material (approx. 200 x 200mm / thickness approx. 20mm ... 2 pieces) Soundproofing tape for speakers (approx. 20 x 600mm / thickness approx. 25mm ... 2 pieces) Vibration damping sheet/vibration damping material (silver) (approx. 100 x 100mm / thickness approx. 2mm ... 15 pieces) Interior panel remover (4 pieces) Deadening spatula (1 piece) Insulation performance: Engine, ceiling, outside of exhaust pipe, high temperature outside the car, the surface is pure aluminum plate, so it has natural fire resistance and high temperature resistance, and direct fire does not burn, ensuring safety of use. Waterproof and moisture-proof: Butyl adhesive has low permeability, is completely waterproof and anti-permeable, has genuine waterproof and moisture-proof properties, and has insulation properties in rain and sunshine. Environmentally friendly butyl rubber: Environmentally friendly material, odorless at high or low temperatures. This product has been environmentally tested by an authoritative organization to ensure 100% health and environmental protection. It can filter out engine and road noise, tire noise and other strong damage to the internal environmental noise, making the internal environment more comfortable and quiet. *Please refrain from purchasing if you are sensitive to minor imperfections. *No comment, immediate purchase is welcome. *If you have any concerns, please comment. *Replies may be delayed, but we try to respond as quickly as possible. Thank you.