Review on Pack of 2 Maryton Pumice Stones with Handle - Effectively Clean Toilet Bowl Rings and Hard Water Stains (Gray) by Eric Render

I've tried EVERYTHING to get gray (sulphur) rings out of our toilets! I have tried all types of cleaning products, all the "recipes" of cleaning products that I have read on the internet and all types of cleaning products. Nothing succeeded! Then I read about them and decided to give it a try. WOW! With a little pressure and a little patience, the rings disappeared! It was a bit like a magic eraser (btw I also tried my magic eraser and it didn't work). I'm glad I chose the one with the handle. This makes it easy to make toilets. I just keep them in a mug in my bathroom cabinet. I see that a pack of two lasts a long time. Five stars!