Bowline on a bight advocate the use of a figure eight twisted version of the Bowline on a bight. This knot can be used to provide a toe hold in the middle of a rope; to make an emergency bosun's chair; and to create an upper rope "block" to make a crude purchase by threading the rope round an anchor point and then back up through the loop. It is sometimes used in sport climbing to tie into two anchor bolts independently. This knot is convenient when a dependable loop is required but neither end of the line is available. It's also commonly used
Uni knot of the line and it is also used for joining two fishing lines together. The bend form of the uni knot (for joining two lines) is not a noose; rather it is akin to a multiple fisherman's knot with the two opposing knotted parts arranged in the manner of uni knots. The uni knot retains much of the fishing line breaking strength and the uni knot works well with monofilament, fluorocarbon and braided fishing lines. Uni knot The uni knot is a multi purpose fishing knot that can be used for attaching the fishing line to the arbor of a