Fireline® is a micro-fused, braided bead thread consisting of Dyneema®, a gel-spun polyethylene which is known as the strongest fiber, per diameter, ever created. It has an unbelievably high tensile strength and has been recommended in numerous how-to articles on bead-working. The 4lb & 6lb. tests will can be used with a #12 English beading needle. Variety packs include one 15 yard spool each of 4lb & 6lb strength of smoke grey.   We highly recommend any ThreadZap® thread burning tools for cutting this thread.

4lb. test, .005" diameter = Nymo size B 

6lb. test, .006" diameter = Nymo size D

PLEASE NOTE: Opened spools (regardless of whether or not they've been cut/used) are not eligible to be returned, except in cases where the cord is damaged/defective.