2022 Updated This pair of power knee stabilizer pads with 4 modified thickened strong springs, it can reduce up to 50 kg from your own weight! It can support your thighs and calves, do a good job of keeping stress off the knee and absorb some of the weight when bending. Comfortable and Secure to Wear The spring knee pads are pretty comfortable and secure to wear, mesh ventilation, double-sided composite OK Cloth, breathable. Enhance Exercise Make your steps lighter. The knee brace with spring will not limit your activities. Instead, it will allow you to do any exercise easily, suitable for running, mountain climbing, cycling, hiking, skiing, basketball, football, soccer, golf, tennis, volleyball and other sports. Adjustable with Velcro This powerknee joint support with adjustable 28in A-B width crossing straps that fit many sizes of the knee. The velcro makes it easy to wear and tie tightly. Anti-skid fabrics, more firmly. NOTE (1) The main function of this knee booster is to prevent excessive knee flexion and provide a strong rebound force, suitable for running, weight lifting, mountain climbing, and other sports to enhance knee strength. When wearing it, the knee will not be as flexible as before. (2) It has a supportive effect and a certain degree of pain relief for patients with knee arthritis and weak legs. But it is only an auxiliary tool and cannot fundamentally treat pain.