Product description Characteristics：Three-band force, precise plasticity Specification:3-piece set Name:Leg-type correction band Material:nanofiber Colour:Black Size: 40-60KG, 60-80KG The key to correcting the leg 1. Tying the right position is usually the most serious part of the calf bend.Mostly choose, a little bit under the double knees. 2. Legging strength must be large, there is no strength, it is impossible to succeed. After fixing it tightly, the legs will feel stretched. 3. Persistence must be long. At least three hours a day, preferably after half a year. Features: Avoid legs curve Balance the leg muscles Make the leg become a straight line Correcting O-type legs, X-shaped legs The effect is better when used for a long time Can use while learning, watching TV, sleeping and so on