Extreme PLAIN PAK Dynamat Xtreme "BY-THE-PIECE" 18" X 32" (From Bulk Pak) Dynamat Xtreme "By-The-Piece" Each Sheet is (1) 18"x 32" (457mm x 812mm) piece of Dynamat Xtreme DOES NOT come with retail packaging. Instructions included Get as much or as little as you want