Review (2/5): Not sure this is an actual pumice
Sure they look the part, but I'm pretty sure these are just some kind of painted concrete. The 2 I received are quite different from one another. One with bigger holes only on one side and pretty smooth on the other. The other was pretty much smooth with no bigger holes at all. For a "pumice" stone they are very heavy like rocks. And I'm not sure why they are painted brown as it comes off in the water or on your feet. I've left it on my soap holder in the shower and had a big brown streak running down the tile. I wouldn't buy this brand again.