Alleviate pain due to calluses, bunions, corns, sesamoiditis or Morton neuromas caused by long periods of standing, running, dancing, or other high impact activities with ZenToes metatarsal pads. The cushioning gel comforts, soothes and balances your forefeet for all day relief, whether wearing high heels, running shoes or loafers. Relieves pressure on the ball of your foot by providing weight distribution and shock absorption while walking, running and standing. Protects the fragile sesamoid and metatarsals from further damage. ZenToes Metatarsal Ball of Foot cushions save you money because they are washable and reusable. Simply hand wash with gentle soap and warm water and lay flat to dry. Size S:Best fits women's shoe size 5-9. Size M:Best fits women's shoe size 8-12.5 & men's shoe size 7-11.