Miyuki Nylon Bead Thread is made of 100% Nylon and created by Master Beader Sonoko Nozue. It is pre-waxed, colorfast, strong, non-stretchy, tangle and fray resistant, and can be knotted tightly and securely. The fibers of the cut end stay together making it easier to thread your needle. K.O. thread works beautifully with all off-loom bead weaving stitches. It is similar in thickness to "Nymo-B" and works best with either a size #10 or #12 beading needle.