Feature 1. High-quality wooden-floor underlay 2. Good sound insulation and thermal insulation 3. Adhered to PU film / waterproof film / non-woven fabrics and etc. 4. Packing in rollsSpecification 1. Thickness0.15inch 0.40cm 2. Width54inch137cm for Europe Market,72inch183cm for US Market 3. Density: 11.0lbs-12.5 lbs/cu. ft.175-200kg/m3 4. Lengthas required