Long and short leg pads correct insoles well. The pad can improve the disharmony of walking, walk in a balanced way, and effectively relieve pelvic tilt and scoliosis. Legs, long legs and short legs can be corrected with raised insoles. The main reason is that the distance between patients' lower limbs is not more than two centimeters, and corrective insoles can be used. Patients are generally less than two centimeters tall.