If you spend a lot of time on your feet, you most likely already have thickened calluses on the soles of your feet.
These thickened areas of skin, which can also occur on your hands, are the result of repeated friction, irritation or pressure on your skin. Luckily, these toughened skin patches are relatively easy to reduce or remove using a natural pumice stone.
Soak your feet in warm water, and use the pumice stone to exfoliate.
Pro cleaning tip! Can also be used to clean mineral build up on toilets.