Gel fore foot cushion: A shock absorber for your feet. Relieves your feet, ligaments and joints! Possibility of individual trimming - fits all shoes and shoe sizes Relieves your feet, ligaments and joints through optimum pressure distribution. The flexible gel filling adapts to every foot shape. Suitable for sports activities. Application Cut the insole along the marked line to adapt to your shoe size. Insert the insoles with the fabric side facing upwards into the right and left shoe. The insole must lie flat in your shoe. Make sure that there are no sharp things(stones,nails...) If necessary,you can clean the gel insoles with a soap solution.