U-shaped felt callus pads protect calluses from rubbing on shoes reduce foot and heel pain Reduce friction and prevent calluses. The medical grade felt used in our callus pads helps prevent sensitive areas on your foot from rubbing against socks and shoes, preventing calluses from forming and protecting current calluses. reducing and relieving pain in your feet. Whether you stand on your feet all day, are a long distance runner, figure skater, or hiker, will hold up to your active lifestyle. Self-stick adhesive sticks to your feet all day, yet removes easily when it's time to change to a new callus pad. Pads can be trimmed to fit comfortably on any foot, men or women, and are comfortably worn with all types of shoes including sneakers, high heels, boots and sandals. Start living an active, pain free lifestyle today with U-Shaped Felt Callus Pads . 1. Due to different monitors and lighting effects, the actual color may be slightly different from the image 2. Due to manual measurement, please allow 1-3cm deviation Size: 4.3*5.3cm