... Core for cloth ,BOPP, PET,BOPA film. Paper tube ,used as core for cloth,for BOPP ,PET, PVC, BOPA,CPP casting ... .Interior diameter :2mm to 250mm Thikness :1mm to 15mm Length:as clients' quirements 4.we have plastic lids avaible .Plastic end ... blade cuts.It is made from paper board . paper tube as core