DescriptionMade of durable and silicon gel material, it has strong self-adhesive backing so they will stay in place while allowing for repositioning if necessary. Perfect for bow-leg/knock-knee leg correction, pronation and supination applications. Use inside almost any shoe to properly your feet and knees allowing pressure and stress on your muscles, tendons, and joints to be eased.Features- Color: Transparent.- Material: Silicone. - Size: 7.50X7.50X1.50cm/2.95X2.95X0.59inch.- This item is made from good premium material for a long lasting use.- Suitable for for poor foot walking posture, long-term walking or just daily walking.- It has a good effect of decompression and correction. Arch support can distribute pressure in the foot.- Cushion pads are excellent for vibration absorption and pain relief.- Fit for many types shoes of men and women, such as walking shoes, work boots, sneakers, street shoes, slipper, flats, and so on.