HushMat is a highly effective Ultra Sound Deadening and Thermal Insulation product. Each box contains 12-inch by 12-inch sheets, providing 1 square foot of coverage. Made from a compound blend of Butyl Rubber with a laminated foil face, this material is self-adhesive and eliminates vibration and road noise. It can be easily applied to the firewall, roof, floor, doors, and sleeper of most makes and models. With a thickness of .080 inches, it is flexible, formable, and can be cut with household scissors or a box knife. HushMat is a practical solution for reducing noise and improving insulation in your vehicle.