... certificate 2. OEM production 3. various colors & specification available 20m PTFE/Nylon Dental Floss Holder 1.Fish shape casing -- PP material ... you to choose from: UHMWPE(High Polymer), Polyester(High Dacron), PTFE, Nylon. For each material, there are various specifications for you ... can design new products as per customer's requirements. 20m PTFE/Nylon Dental Floss Holder