Five-color thread, made in Taiwan 2.5mm width, 10m Purchased at a famous market in Beijing. I went to a thread and string specialty store in Tokyo, but they didn't have it. 2.5mm width, 150 yen per meter x 10 meters Free shipping via regular mail (non-standard size). ★ Five colors (Goshiki) originate from the ancient Chinese theory of Yin and Yang and the Five Elements. The theory of Yin and Yang and the Five Elements states that all things are made up of "two energies of Yin and Yang" and the five elements of "wood, fire, earth, metal, and water." It is said that the world revolves around the elements of Yin and Yang and the Five Elements. ★ Five colors are used in the Tanabata (Star Festival) paper strips, the curtains of the sumo ring, the curtains of shrines and temples, and the streamer of carp streamers. ✡️ For a necklace, if you thread one string through and tie it, about 90cm is needed. If you want to adjust the length of the left and right strings of the necklace, about 95cm is needed. Because it's thick, you can use it as is without braiding it. ✡️ If you wish, I can list other widths such as 1mm, 1.5mm, and 1.8mm if I have them in stock.