1The patella stabilizer provides stable support and prevents damage to the inside or outside of the knee. 2Designed to prevent medial and lateral subluxation, knee dislocation, patellofemoral pain syndrome. 3With 2 detachable kneebending movable aluminum supports beside it to protect the knees and provide support. 4It has a powerful protective effect, reduces joint hyperextension and prevents sports injuries. 5With silicone gasket to prevent knee injury, suitable for sports stadiums, basketball, running, football and other sports.