It's like having a mini spa in the palm of your hand! I work anywhere from 40-60 house a week and wear steel toed boots so my feet are always in pretty bad shoe and very callused. when I found this tool I was skeptical that it would actually work but no harm in trying. Once I started faithfully using this I began to see a difference now my feet are baby soft and I'm no longer in pain from the calluses on my feet