Really worked!
I got these at the same time I bought a three file Mont Bleu set.  The two-sided bar slab is simply amazing for taking down calluses. Until recently I wore heavy duty boots to work, and had very high calluses on my right foot. It took a couple weeks to correctly remove the calluses a little at a time, but my feet are comfortable and back to normal.  I use the slab now to keep them smooth.  The grit is part of the file, so it has stayed the same texture and doesn't wear or wash off. Caring for the file is easy too, just wash with mild soap and warm water.<br /><br />Please note that I always attempt to give each item enough time and a fair chance before I post a public review.  I never write a review based on my out of the box first impression, unless the item was returned.
Rating: 5 stars