First called "constrictor knot" in Clifford Ashley's 1944 work The Ashley Book of Knots, this knot likely dates back much further. Although Ashley seemed to imply that he had invented … See more

Double constrictor knot
If a stronger and even more secure knot is required an extra riding turn can be added to the basic knot to form a double constrictor knot. It is … See more

The constrictor and double constrictor are both extremely secure when tied tightly around convex objects with cord scaled for the task at hand. If binding around a not fully convex, or square-edged object, arrange the knot so the overhand knot portion is stretched … See more

The method shown below is the most basic way to tie the knot around a post (that is, using a working end).
1. Make … See more

The constrictor knot is appropriate for situations where secure temporary or semi-permanent binding is needed. Made with small-stuff it is especially effective, as the binding force is concentrated over a smaller area. When tying over soft material such as the neck of … See more

A heavily tightened constrictor knot will likely jam. If the ends are long enough, one can sometimes untie it by pulling one end generally … See more

• Constrictor Knot animated and illustrated
• Grog. "Constrictor Knot". Animated Knots. Retrieved October 16, 2005. See more