The eight-character buckle is also called a single eight-character knot, and the play is shown in the figure.
In addition, there are many kinds of derivative styles of the single figure-eight knot of fire escape rope, such as double figure-eight knot, figure-eight fisherman's knot, figure-eight rope ring, figure-eight back knot and so on. For more pictures or animations, please refer to Baidu's "Knotting Skills Manual of Eight Knots" or "Encyclopedia of Tether Escape Methods".
If you have any questions, please consult 5 1 Anju.