2 Pcs double sided curved foot files with large surface area, work efficiently at smoothing rough, calloused, dry, cracked feet and heels.U-shape curve design foot file helps to evenly around the heels and the ball of foot and easy to hold with a comfortable plastic handle.The back design presents a convex curve, with fine sand, perfect to fit the soles of the feet while suitable for removing the soft dead skinThe concave curved design on the front, with coarse sand, fits perfectly to remove the thick calluses on the heels and the edge of the foot.Easy to use, put your foot into the curved file and move it back and forth to shave down calluses and dead skin.Then rinse it off under slightly warm water and hang up dry for nest use.