THICKNESS: 7MM-11MM DENSITY: 70KGS/CBM-140KGS/CBM CONSTRUCTION: APT CORE WITH PE FILM ON ONE SIDE(CAN PINRT LOGO ON THE PE FILM) AND NON-WOVEN FABRICS ON THE OTHER APPLICATION: DOMESTIC & COMMERCIAL ENVIRONMENTS CHARACTERS: SOUND ABSORPTION, THERMAL INSULATION, FITTER FRIENDLY, WATER PROOF ROLL SIZE: 1.37M*11M; 1.83M*14M OR AT CUSTOMER'S CHOICE PACKAGE: EACH ROLL BY ONE PP BAG WITH CUSTOMER'S LOGO WARRANTY:FOR LIFETIME AFTER INSTALLATION Our underlay prevents draughts & provides better insulation to reduce heating bills, helps to retain good looks, luxury and comfort of the new carpet, improves performance & durability & helps prevent undue wear,and it softens the sound of footsteps & reduces noise transference to rooms below. It also has exceptional SUPERIOR ACOUSTIC & THERMAL INSULATION QUALITIES.