Twist the waist board and buy a split one. Because the waist twisting disc, which integrates massage and fitness, is like a stationary skateboard and a hoop-less hula hoop, which takes up more space, while the split one can be disassembled, which takes up less space, is convenient and easy to use. It is better to massage the acupoints in the pathological reflex area of the sole of the foot, twist the waist, rub the heat and warm it. So twist the waist board and buy a split one.