Review (4/5): Worked great
I've only used this once so far. It did a great job removing the dry skin on my heels. They look and feel much better. Be careful, I went a little too far and made my heel bleed a tiny bit. The file is hollow plastic with grit paper attached. I don't know how long the grit will last or if it will peel off, but it seems good even after washing and scrubbing with a nail brush. The handle seems firm enough. It did not feel flimsy while using. I hope this helps.