Constrictor Knot

The constrictor knot is one of the most effective binding knots. Simple and secure, it is a harsh knot that can be difficult or impossible to untie once tightened. It is made similarly to a clove hitch but with one end passed under the other, forming an overhand knot under a riding turn.

The double constrictor knot is an even more robust variation that features two riding turns.

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Source: Wikipedia · Image: Wikimedia Commons · CC BY-SA 2.5

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