1. The principle of height difference improves the balance of the center of gravity and improves the shape of the legs 2. High on the outside and low on the inside is suitable for improving O/XO-shaped legs/calf valgus/outside wear of shoes/outside splayed/foot inversion 3. The inner arch support design prevents the arch from collapsing 4. Comfortable elastic material, reduce pinching and buffer pressure 5. Can be cut, washed and reused 6. Material: elastic PU+velvet cloth 7. Size: outer height 1.3cm, inner height 0.4cm, arch height 1cm
