Lenicany 6Pack Pumice Stone for Toilet Cleaning Bowl Stick,Powerfully Cleans Hard Water Rings，Calcium Buildup & Stains, Suitable for Cleaning Toilet, Bathtubs, Kitchen Sink, Grill

I clean houses. We have highly mineralized water so I use these to remove calcium deposits from tubs and toilets. They require elbow grease but will remove the deposits without damaging the porcelain. Don’t use on metal though. Will scratch up fixtures.

These do work well on tough stains. But, they dont last as long as other brands Ive used. The larger rectangular block sized scrubbers last longer. But, you do get several of these in a pack. So, you can keep one in each bathroom rather than carry one room to room. Okay value for the price.

We live out in the country and have a well so naturally our water is hard. There were some spots in the toilet that I tried absolutely everything to get the hard water stains out. These worked like a charm it was like magic.

Did exactly what I wanted clean soap scum off sink....

I use for toilets( hard water) and other hard to remove build up.

I’ve tried a lot of at home methods to try and get rid of the hard water build up but nothing really worked. Finally decided to give this a try and it worked like magic. It takes a bit of arm grease if your build up is thick but it’s so worth it - got my toilet looking brand new!

It worked great, amazing price ( like $7 for the 6 pack), but the noise is of course horrible that it makes when using it, might not bother some people but I pushed through it. Used it on rust spots on the sink, got them off great. I even used it on a plate with rust from a metal bucket that was on it, and got it off. Highly recommend.

I used these for the hard water stains on my toilet after months of failed attempts of other products and this completely made them disappear! I just hate the noise it makes while scrubbing the bowl! Still totally worth it!

Works wonders on porcelain and ceramic! Takes off all hard water and calcium build up.

Was able to get that ring off. Did not scratch the toilet. Will be purchasing again.