Step 1:
Fold your rope in half, take the U-shaped end (called the ‘bight&rsquo ;) and wrap it twice around your partner’s wrist or ankle leaving room to slip two fingers underneath.

Step 2:
After the second wrap, cross the bight over the top of the wraps then pull it back through the underside.


Step 3:
Leave enough of the bight to tie a square knot with the remaining rope.


Step 4:
The final result looks like this.


Step 5:
The remaining rope and bight can now be used to secure your partner’s wrist or ankle to something such as a bedpost or chair leg.