Self-adhesive tape on the back for easy installation Car insulation and sound insulation mat, strong insulation performance Excellent sound absorption and good resistant.No powder, no smell, safe to use, waterproof and dustproof, practical Sound-absorbing cotton applications: Car Deadener for Protection No powder, no smell, safe to use, waterproof and dustproof, practical Suitable for most model, suitable for doors, roofs, floors, hoods, firewalls, luggage, trunk lid, Manufacturer: NEWFT