the shape of it was a little awkward to use and it broke in half after I dropped it once in the shower. I still use it with it broken but the composition of it was pretty heavy and probably lead to it breaking when it fell.
I tried to use it a few times, however the stone is crumbling and if you punch it softly on the wall, it will start to destroy.
The stone is very weak and not in a good quality.
Well, I didn't expected much from such cheap and with just 4 stars on the site product.
I wouldn't recommend, buy a sponge, it will better clean your feet, also between the fingers, because with a stone it's hard to manipulate and get everywhere to clean.
I couldn't see any results on cracked skin.