Product weight: adult models: 850g,Package size: Adult leg brace: 35.2*20.5*5.5cmHeight of 1.5M or more to choose the adult model, height of 1.5M or less to choose the children's model; comfortable and breathable, enhanced auxiliary belt, scientific correction.Nylon braided belt design, the first two weeks about 1.5 hours a day, mainly to leg adaptation, develop habits, strength gradually tighten, after adaptation to about 2 hours a day each time not less than 30 minutes, physical correction is valuable to adhere to, the effect will gradually show, the treatment cycle of 2-3 months.Airbag pressurization, physical traction, airbag pressurization on both sides, pressurized physical traction on both sides of the leg, with moderate strength.Built-in long aluminum strips on both sides to fit the contours of the legs, with the force concentrated on both sides of the legs; aluminum plate support, removable.Three straps in one, comprehensive coverage - thigh strap, knee strap, calf strap, wider and thicker to avoid falling off, large contact area, comprehensive coverage.