I've gone through several battery powered callus removers because I got physically tired of manually filing my callouses but they were slow and relatively ineffective. I decided to go back to manual and try this and it is SO effective that I don't have to file 50 or more times to remove each callous-y area anymore. In fact, I only have to do a few passes without exerting much pressure or effort because this thing really takes off a lot of dead skin in one fell swoop. So much cheaper and easier!
Very pleasantly surprised at the heavy duty quality of the item and even more so, the fact that it just WORKS. Does a great job of it, too - removes a good amount of dead skin quickly with one side (coarse) and leaves it really smooth with the other (medium). It's also super easy to clean. Win-win. Leaps and bounds better than the cheap rasps also sold here on Amazon, which are a complete waste of money. The handles on those always break in the same spot and are a pain to clean. Can recommend these, however!
This is an excellent product.I've mostly used the coarse side--since I'd built up a pretty thick layer of callus on my heels--and it removed the callus quickly and comfortably.