“A bit hard to rate. They did the job really well. I wanted them for the second toilet, which does not get used all that often, and the water often leaves a mark. The Bombs took that off perfectly. The problem I had was with the smell. I have a strong sense of smell and it really over powered me. My husband didn't mind it at all. So for the job I would have given it 4 stars, but the smell I had to take one off.”