1. GEL material, shock absorption and pressure relief, balanced force, light and comfortable 2. O/X leg height difference correction 3. Soft shock absorption, relieve muscle tension 4. Self-adhesive, convenient and firm, does not hurt the shoes, and can be used repeatedly 5. Material: GEL, magnet 6. Size: S/M/L 7. Weight: S about 28g/pair, M about 37g/pair, L about 47.5g/pair
