Sanadahimo is one of the Japanese traditional fabrics.
How to knot the "Sanadahimo (Japanese Close-woven Samurai Ribbon)
① Place center of the string on top of the box so it makes
the letter L on the corner. Cross the strings at the bottom.
② Cross over the to the right the left string at the bottom.
③ Cross over to the left the right string at the bottom. Pull on both sides.
④ make a ring with the left string.
⑤ Make a bowknot.
⑥ Fix the the shape of the knot.