A little tip from me: Let the DRAM STICKER !! You can not remove it, at least not without residue. I've tried it first with tear, then with a knife, then with steel wool (this metal scourer) + Soap and nail polish remover. Hot water also.
I did not get away there, I will stick it with anything else. But I do not think that the adhesive is harmful to the cat in any way (it does not come with security in the cat's body, even if they would lick the affected area. In my opinion, would be passive smoke worse for the cat)
So much for glue (-1 Stern)
Otherwise, I have to say that this "Napfkonstruktion" is well done. The wells can be individually removed and washed, Total is also the plastic cup size.
I have it get on Amazon, thus I forgive also 5 star. -1 Star because of the adhesive, but my tip: Just leave him to it.
