Dunk obsidian shoelaces

Dunk obsidian shoelaces as follows:

1, one end is knotted and the other end is punched in turn; Tie it in the same way; After repeating it, put the remaining shoelaces in and tie them.

2. Purple shoelaces are also punched in the same way in order; Choose harmonious shoelaces according to the color of shoes; The extra shoelaces are knotted on the inside.