Usage Of Grinding Foot Stones

After washing hands or soaking feet for three minutes, gently rub the calluses with a foot grinder. A grinding foot stone can be used for 3-6 months. Just use some time and light force to gently rub the areas under the heel, sole, and big toe that are prone to hard calluses in a circular motion. This step should be done once a week, otherwise the skin will see this grinding mechanical action as an external force invasion and instead grow a thicker layer of skin to resist it.