3 Pack Replacement Roller Head for Electric Callus RemoverYour Package Includes:3x Coarse Roller HeadSteps of Perfect Pedicure:Step 1: Soak your feet in the warm water for 10 minutes. Then wipe with a dry cloth. (This step can also be omitted.)Step 1: Turn on the electric callus remover and slide over the callused feet gently to achieve the desired result.Step 3: Clean the feet and apply some cream to moisturize the feet enjoy the smooth and soft skin feeling!Note:Our roller heads also suitable for quite a lot brands of callus remover. If you are not sure whether our roller head is suitable for your foot file please send us the picture of your foot file and we will check it for you.