I love this product! I walk around the house and backyard bare-feet, so I develop callus very quickly. I have bought many foot files over the years. Some broke after a couple of use, and some didn't quite get the job done. First of all, the size came as a surprise. It's huge!! Much bigger than the ones you'll find at target. Secondly, it's very sturdy. I like using the foot file in the shower. Hot water softens the callus a bit, and clean up it's much easier too. Be careful not to scrape too hard or too long though♥