Break VERY easily while removing protective plastic
Don't waste your money.  These pumice stones are VERY soft and break VERY easily.  Fortunately, there are 4 in the pack, because two were damaged in spite of the fact that I tried very carefully to remove the protective plastic.  One cracked all the way across and had to be thrown out and a second one broke at the bottom corner.  Also, the straight handle makes them very awkward to use when using them in a toilet.  A curved handle would be appreciated.
Rating: 1 stars