Amazing. Very effective.
I walk around barefoot or in flip-flops for half of the year, and my feet become heavily calloused. I feel like I have hooves. This took my heel callouses  off easily.<br /><br />Use a light touch, remove a bit at a time, and you’ll have smooth calluses. Be careful not to sand too deeply (as I did on the bony edge of a toe).
Rating: 5 stars