Material:100% Nylon 6 Diameter:15D/1F,17D/1F, Twisted: S & Z Color : Raw White , Semi- ... dull, BOLONG–- A Leading Monofilament ExpertMaterial:100% Nylon 6Diameter:15D/1F,17D/1F,Twisted: S & ZColor : Raw White , Semi-dull ... /40'ft : 324 ctns/670 ctnsUse : Panty-nose, Hosiery, Socks 15D/1F high twisted nylon monofilament yarn