3M Fine 9089NA Drywall Sanding Screen, 4 3/16in x 11 1/4 in, 2-Sheet Grit, 2 Count

The perfect thing for cleaning hard water stains out of sinks and toilets.

Fearful of the pointy sharp corners of the mirrors fronting the doors on our medicine cabinet -- one day after suffering a scratched arm -- I did some research on line and read that emery cloth may be used to smooth glass. Who knew! I took a chance and ordered this low-cost package. Right after it arrived, I opened it to expose the coarsest grit and rubbed it on a test corner. After about 10 seconds of this, I had successfully converted the dangerous point into a non-threatening radius corner. Within a minute, I did the same with the three remaining corners. Sign me Perfectly Happy.

Lightly used with Barkeepers Friend and water, removes hard water stains from porcelain toilet bowl without damage. Quick and easy - just use a small square and wear rubber gloves.

I used this to clean my toilet bowl. Now couple months passed, the bowl still looks like new. Great!

I used this to get a terrible stain and water ring out my toilet bowl. It was left for years from an abandoned home I purchased. I used bar keepers friend (leaving it on for several days). Then after scrubbed with this. It really worked.

Im been dealing with stubborn buildup in my toilets and sinks due to hard water at my place. I had tried so many different things, when I stumbled across a tutorial on a blog recommending using a fine grit sanding screen with Bar Keepers Friend; the blogger said that this had been recommended to her by an employee at The Home Depot, as its much gentler on porcelain surfaces than pumice is. I cut a small piece (about 4 inches) of the sanding screen, covered the toilet bowl with Bar Keepers Friend, & scrubbed away. It did take some elbow grease, but it was worth it! My toilets dont look good as new now, but they still look SO much better.

Easy to use!!!

Nothing really bad about it. Works as intended. Most bad reviews Ive read, appear because someone does not know how to use these. Read the product use information and it will not let ya down.

They work they last fora decent amount of time, but come on for the price stop squeezing the ass cheeks. Give the customer a fair amount of material for the price.

I used this in conjunction with an attachment to my Shop Vac and vacuum air hose to scrape the crud (known down here as popcorn paint) off a 500sqft sloped ceiling. I dont know how I would have done it any other way without putting me in the ER. The varying types of screen from fine to coarse lasted the entire job between a two coats of spackle and two coats of primer latex paint. The finished job looks spectacular if I do say so myself....and I just did.