Review on Pumice Stone Toilet Bowl Cleaner by Kalolary - Effective Hard 🧼 Water Stain Remover for Kitchen/Grill/Bath/Spa/Tile/Household Cleaning - Includes 2 Pack with Sewage Strip by Rusty Lyons

This has worked well especially removing green limescale stains from the toilet without much effort. I used the other one in the shower. After a long scrubbing session that used up all the scrubber (and left a lot of sand behind), I finally got the shower floor stains, which I couldn't manage with anything else. I was also able to remove almost all of the green stain from the soap dish in another shower, although I had to "cut" it into shape to use to clean the floor in the first shower. I've ordered another set. The only reason I gave it 4 stars instead of 5 is because of the shape, the mess and the effort required for some of the stains. But hey, it worked!