DC Mat is a High Quality self-adhesive, foil backed Sound / Vibration damper. It is designed to be applied to the inner sheet metal of your car reducing road noise and heat. It’s as easy as cleaning the metal, removing the protective section of the mat and applying the DC mat. Anyone can do it. 36 Square Feet Of Coverage Continential US SALES ONLY 2.2 mm total thickness 18" x 32" 9 Sheets