1. From a medical perspective, the primary cause of X/O leg formation is the longterm deficiency of calcium and phosphorus during human growth, leading to bone deformation and rotational dislocation of the knee joint due to prolonged incorrect force application. External pressure can be applied to twist the knee joint, correcting the rotational dislocation and thereby addressing X/O legs. 2. One belt, two methods of use: The correction of leg deformities is achieved by altering the wearing methods for the two legs of X/O legs! 3. Specially designed with a unique structure to correct leg shapes such as Olegs, Xlegs, and bowlegs, it helps rectify leg deformities caused by poor habits, including Olegs, Xlegs, outwardturned legs, and arched legs. 4. Easy to use, suitable for both day and night wear. It gently applies pressure to the legs, balances fat distribution, and improves balance and leg strength.