The stacker chair is the top choice for home exercise equipment. The movement form of the pedal chair is up and down movement of the body, challenging the balance and strength of the body. This stable chair adopts a unique spring and replacement system, which can more conveniently adjust the difficulty of movements and effectively protect the equipment. This device is not only suitable for individual use but can also be transformed into a group course. The training of over a hundred movements can fully meet the requirements and influence of group courses.