Features: Non-slip design with self-adhesive backing ensures insoles stay securely in place. Adhesive can be cleaned and reused as needed. Heel cushion pads feature strong adhesive properties for reliable performance. Made from soft gel material that is easy to clean and reusable, suitable for everyday use and designed to remain discreet inside footwear. Provides support to help correct O-leg and X-leg alignment issues. Helps prevent bowing and leg valgus or varus conditions. Can be worn medially to correct over-pronation, counteract knock knees, and ankle eversion. Can be worn laterally to correct supination and help prevent bow-leggedness and ankle inversion sprains. Note: 1. Actual color may vary slightly due to lighting effects. 2. Please allow 1–3 cm variation due to manual measurement. 3. Can be layered at different heights to accommodate varying degrees of X-O leg symptoms. Becomes adhesive after removing the protective film on the bottom. Thickness options: 3 layers (6 pieces): 2 cm; 2 layers (4 pieces): 1.5 cm; 1 layer (2 pieces): 1 cm. Package includes: 2/4/6 pcs medial/lateral heel wedge silicone insoles.