Specification: Thickness: 5mm and up Density: 60kg/m3 �` 200kg/m3 Size of the Roll: According the demanding of our customers. Regular Dimension of one Roll: 11m �~ 1.37m = 15.07m2 ˆ½ 1.83m �~ 10m = 18.3 m2 Sruface Backing: PE fim & PE film Other Surface Backing Choice: PE film, Crepe Paper, Stitching Paper, Non-woven Fabric or Aluminum Foil. Color: Different Color of the Backing can be accepted. Packing: PP bag Origin: Manufactured in China Character: Sound absorption, Thermal Insulation, Fitter Friendly Accept the customization of our client! Please feel free to contact with us! zzjp at live.cn