100% brand new and high quality.Features:1. Made of high-quality polymer fibers and diving fabrics, it is soft and skin-friendly, light and breathable, fits the human skin, and is comfortable to wear without affecting normal movement.2. Effectively help you improve various leg problems, such as looped legs, O-shaped legs, X-shaped legs, bow legs, splayed legs, knee valgus, knee varus, etc.3. Both adults and children can use, suitable for many occasions, such as work, walking, resting, sleeping, watching TV, doing housework, going to school, class, etc. (Crowd 2-50 years old)4. The foot sock cover adopts a triangular design, which is more durable and beautiful and is compatible with different leg types.Specifications:1. Material: Special high carbon material, Neoprene polymer fiber, diving fabric 2. Color: black and red3. Size: S for height 90-130cm, for waist: 40-50cm, for weight 15-35kgM for height 130-170cm, for waist 55-70cm, for weight: 35-55kg, L for height 155-180cm, for 65- 95cm, suitable for weight 55-75kg4. Packing size: 28*16*6cm(X-shaped legs) Wearing method:1. Fasten the belt;2. Tie the knot on the outside of the leg, and put on the foot socks;3. Press the knee on the inside of the leg and straighten it upward;4. Cross the drawstring on the outside of the leg.(O-leg) wearing method:1. Wear foot socks with the knot on the inside of the leg;2. Press the knee on the outside of the leg and straighten it upward;3. Cross the inside of the drawstring legs;4. Fasten the drawstring.Notice:1. Choose the size according to your height and weight waist circumference, it should not be too large or too small.2. The buttons and foot cover are thick, the foot cover cannot be adjusted, and there is no fixed belt for the knee.3. Applicable crowd: above 2 years old, below 50 years old.4. Washable, not machine washable, hang to dry.Packing List:1* Black and red leg correction belt1* Chinese manual