BLACK 10455 - Dynamat Xtreme 36ft Bulk Pack Sound / Vbration Damping for an Entire Car 10455 - Dynamat Xtreme 36ft Bulk Pack Sound / Vbration Damping for an Entire Car Dynamat Xtreme Bulk Kit Sound and Vibration Damping/Deadening for the Entire Car Designed for use on rear decks, doors, floors and the floor of your trunk Contains nine 18" x 32" sheets of Dynamat Get more bass, more music, lower road noise and better sound for your car audio system