Today’s handcraft topic is “A knot hard to untie (hair elastic)".
How to tie
1. Use cord instead of hair elastic so that it is easy to understand.
2. Place A on B. Then wrap around.
3. Place A on B. Then wrap around again.
4. Pull a cord, tie a knot. It’s done.
5. By the way, how to untie the knot.
6. Pull harder the A cord (or B cord).
7. Then draw the cord with a knot. Untie.
Making movie is the following.