Stop the unwanted sounds and vibrations associated with classic cars with R-Blox "Extreme Sound Control" products. "Extreme Mat" is a 70 mil. (.07") -thick mat consisting of a specially formulated visco-elastic compound bonded to an aluminum foil-type facing layer, which provides superior sound deadening as well as heat protection. Available in small quantities for speakers or doors or bulk rolls of 50 or 100 square feet for doing an entire vehicle. With a variety of applications you can reduce road, engine and exhaust noise in any vehicle, while increasing the driving pleasure of your classic. With such a wide range of products, R-Blox is great for floorboards, under hoods, trunks, speaker enclosures and much more, all depending on your needs.