I've used all sorts of items on my feet. Some require batteries, some are demonstrated on TV against balloons. While I'm still using that PedEgg for hard care foot maintenance, sometimes I want just less abrasion. Or I want to clean up after the PedEgg. Whatever. I like to have a foot file in the shower. I like the ones from Best Foot File because the stainless steel won't rust, they're pretty indestructible and when I rinse it off really do feel as though it gets clean. Unlike pumice stones, which make me wonder what is stuck in them.
Best Foot File