Review title is Great tool to have if you have thick stubborn callus on your feet. [SEP] I had a callus build up on my foot and regular methods and attempts to remove it with a grinder just were not cutting it ... no pun intended. This worked very well at removing the callus by shaving it down then using the other end to smooth it out. The way the blade is mounted makes it safer so you don't accidentally cut yourself but you should still be cautious becuase I can see how it would be possible to cut yourself if your not careful. The handle and angle of the blade helps reach the bottom of your foot easier and it has a protective cover that slides back and forth and snaps into place so you can switch back and forth from using the blade or the &#34;cheese grater&#34;. The only reason I did not give it a five star review is becuase I wish it came with a few extra blades, so you will want to purchase those as well becuase they get dull pretty fast. The other reason is that the other end that I refer to as the &#34;cheese grater&#34; is a thin piece of metal that is curved and snaps/slides into place on the handle and has fallen out a couple times during use. It easily snaps/slides back on and still works well to smooth out the callus.