Solve Your Foot Problems: ball of foot cushions help to soften calluses, prevent cutin, and protruding bones, while also providing rebound massage to reduce fatigue and foot wea. High Performance Back Glue: Our ball of foot cushions are washable and reusable with a sticky back glue that won't damage your shoes. High Grade & Soft Material: Made with breathable and sweat-absorbent suede material and soft gel cushioning to fit all shoe styles - high heel, sandals, sneakers, leather shoes, slippers, boots, etc. Perfect Combination: Get two ball of foot cushions and two heel pads in one pack to relieve pain, absorb impact, reduce shoe size, and provide comfort for your feet.