These are some replacement heads for electric foot files, which can replace your old foot grinders, and can better remove stubborn calluses and dry skin, exposing smooth feet. Using sturdy materials, not easy to deform or break, good for a satisfying pedicure experience at home. Features - Color: Black -Material:ABS - Size: 4.50X1.50X1.50cm/1.77X0.59X0.59in - These replacement foot file roller heads are suitable for various kinds of electric foot grinders. - Made of sturdy materials, these foot file roller replacements are durable and not easy to damage. - Easy and convenient to replace the grinding head, no complicated skills required, time and efforts saving. - These foot file rollers can more easily remove dry, rough, dead skin and calluses on the feet. - Small size, light weight, the replacement roller refill heads for electric pedicure tool is easy to use, very convenient. Package list: 12 x foot file roller heads(coarse type)