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Also known as the Square Knot

• An excellent general purpose knot for tying two pieces of string or twine together, the reef knot is possibly the most commonly used knot for the job, and is easy to learn. However, it cannot be overly stressed that the Reef knot is not a long term or secure knot, and it should only be used to finish parcels or bindings.

• It is common to chant "Left over Right and Under, Right over Left and Under" when tying the knot. (This can also be performed as "Right over Left and Under, Left over Right and Under".)

• The reef knot can easily be undone by gripping one loose end, and pulling it back over the knot, in the opposite direction, thus straightening the rope which is pulled.