underlayment: 1.UNDERLAYMENT CAN EXTEND THE LIFE OF YOUR CARPET, 2.IMPROVE UNDERFOOT COMFORT 3.MAKING YOUR HOME QUIETER laminate flooring underlaymentSpecification and Features: 1) Roll Length: 11m,13.725m2) Roll Width:1.1M, 1.37m&1.83m3) Thickness: 3/8 inch,7/16inch,1/2inch,4mm, 5mm, 6mm, 7mm, 8mm, 9mm, 10mm, 11mm, 12mm4) Compound Material:Crepe Paper,Non woven and PE etc.5)Packing:Plastic Bag6) ...