Assistive function: readjust the arrangement of the bones of the feet by changing the incorrect negative force points of the feet. Long-term orthopedics can make the arrangement of the feet bones reach the best condition, especially for common foot diseases such as flat feet, thumbs Toe valgus, heel valgus, transverse arch collapse, horoscope and bone diseases that adjust the negative force line of the human body that are not vertical, such as O-legs, X-shaped retreats, cervical vertebrae, pelvis and other skeletal structures play a certain role in correcting.