1. First, prepare a string with a length of 160 cm, fold it in half from the middle and twist it into a rope.

2. Secondly, pass the string through the clasp of the bracelet to form a closed loop, and tighten the two ropes at the knot to tie the knot tightly.

3. Finally, fold a rope in half from the middle, and one end passes through the lock ring. Tighten the two ropes of the bracelet by hand, adjust the length and tie the knot.