air filtrations paper Fiber composition: 100%PET, 100%Viscose or Viscose mix PET Width:Below 88 inch Weight:20-150 gsm clean air filtrations ... paper Fiber composition: 100%PET, 100%Viscose or Viscose mix ... ,It also depends on the quantity,PackageIn roll, Inside the paper tube,outside the polybag, or according to the detailed requirments ...