The FootSmart Gel Callus Cushion provides cushioned relief from callus pain. This high-tech polymer cushion relieves the discomfort caused by foot calluses and metatarsalgia. Just apply directly to the ball-of-foot area and enjoy pain-free movement. The Callus Cushion is reusable simply wash with cold water, air dry and the adhesive reactivates. You get lots of mileage out of two cushions per box.