Features: Built-in long aluminum bars on both sides fit the contours of the legs, so that the gravity is concentrated on the sides of the legs. The airbags on both sides are pressurized to pressurize both sides of the legs with moderate strength. Change the center of gravity, treat O/X-type leg gradually. Either sleep or shopping, read a book or exercise, can continue to use. Three-in-one full coverage, thigh strap+knee strap+calf strap, widened and thickened to avoid falling off. Flexible and durable, not easy to be out of shape. Specifications: Material: nylon braided belt Color: Black Type: Child type, Adult type，optional， Package size: 352 * 205 * 55mm，Adult type，, 305 * 165 * 55mm，Child type， Package weight: 850g，Adult type，, 580g，Child type， Package list: 1 * Legs Correction Belt