Skills › 🪢 Knots

Bind something tight with a constrictor knot

An improvised cable tie or hose clamp made from string. Once pulled tight it barely budges.

⏱ 30s

A blue cord tied around a thick green rope with a constrictor knot: two turns with the crossing strand pinning the ends underneath. Cropped from a larger photo.
David J. Fred via Wikimedia Commons · source · CC BY-SA 2.5
  1. Wrap the free end of a string around the object.
  2. Cross it over the standing part and wrap around a second time.
  3. Tuck the end under itself, then under the first wrap, so both ends come out from beneath the X.
  4. Pull both ends hard to cinch it.

Tip: It needs a curved surface to grip. It may not untie at all, so to remove it cut the strand crossing over the top and it springs apart.

Try it now: Tie a bag of chips shut or bind three pencils together with a piece of string.

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