Features: 1) Dimensions: Φ1,600 x 1,270mm 2) Function introduction: it is good for movement of waist joints and can help to relax the muscle of waist and back, and to enhance agility and flexibility of waist. Suitable for people of different ages except children 3) Approaches: take hold of the handle with both hands, keep your feet standing well and move your body from one side to the other. 4) Notice: keep hold of the handle all through the process