Your feet will feel soft again thanks to the Remington CR4000 reveal perfect pedi. Depending on the amount of calluses you choose one of the 2 rollers. You choose the coarse roller to soften the hard skin on your feet and the extra coarse roller to tackle the hardest spots on your heel. Your feet will feel softer after one treatment. This callus remover works on 2 AA batteries, so you can easily take it with you in your toilet bag. When you are finished, clean the brush head with the brush head supplied.