A new, gel spun polyetholine, fused into a super fiber. This pre-waxed, braided cord has an unbelievably high tensile strength. Known as the strongest fiber, per diameter, ever created, it's been recommended in numerous how-to articles on beadworking. It is pre-waxed and comes in either Smoke Grey or "Crystal (really translucent white)". Will fit #12 English beading needle. .006" diameter (4 pound strength) size is similar to Nymo size B. .008"-.009" diameter (6-10 pound strength) size is similar to Nymo size D. Please note that, for some unknown reason, the information on these labels -- pound strength, diameter, color name, size listing -- changes frequently. We will send you what you order, even if the information on the package label doesn't match exactly.