I rarely wear shoes, despite the weather; I suppose a leftover from my hippie girl days. Needless to say, my feet are in constant need of TLC. I've used rasps (which cut - one time I got a cut on my foot from one that got infected and left a scar! GROSS!) Then there's pumice stones which help a little bit but not so much.) This thing is a GAME CHANGER. It's gentle but gets all the calluses off with no effort whatsoever. It's amazing to see the dead skin dust -ewwww!- that piles up. Afterwards your feet feel like satin and you're ready for your foot model career.
You get 2 different textured interchangeable heads, one for the heavy lifting and one for perfecting and smoothing. This is cordless so you can take it anywhere and because it's waterproof, you can use it in the bath or shower as well.
I recommend after using to use a good foot lotion and maybe sleeping with some socks on to wake up to baby feet. I will never be without this again.