Old people, children, disabled people. Improper use of the figure-8 puller can lead to injury. Figure-8 stretcher is a kind of fitness equipment specially designed for bare shoulders and beautiful back. Unique figure-eight shape and elastic band design can effectively exercise your shoulder and back muscles and enhance your shoulder and back strength. The figure-eight drawing machine adopts elastic belt design, which has good flexibility and adaptability. The figure-eight stretcher can not only open the shoulders and beautify the back, but also exercise the whole body muscles and improve the coordination of the body.