-4m-20m dental floss . -fiber: PTFE, UHMWPE, ect. -waxed, unwaxed,blue colors -OEM available -CE,FDA passed Round Dental Floss, manufacture according to customer requirement PTFE/UHMWPE dental floss.Waxed and mint as you choose. 1. materialPP material with blue color2.floss loneness4m----20m as you choose.3.stretchy fiberPTFE, UHMWPE floss.4.fiber featuresnon-flying hair, no broken wires,the ...