Miyuki Beading Thread has the same properties as KO thread Made in Japan of 100% Nylon - pre-waxed, colourfast, abrasion- and tangle-resistant thread, which can be knotted tightly and securely. Miyuki thread is an excellent alternative for KO/Nymo/S-Lon and is similar in diameter to a Nymo size B and is also known as 300dtex. Miyuki thread has a circular cross section which means it’s much easier to thread onto your needle than S-Lon. Miyuki thread can be used with size 10 or 12 beading needles and is sold in 50 meter spools.