VanishScrubbing Bubbles Drop-Ins, 1.7 Oz, Pack of 12

I tried a few other brands before re-ordering these. The other brands often have 2 tablets that you have to use together (a blue and white one), which is kind of a pain to have to do every 1-2 months or however often you replace it. But besides the inconvenience, the other brands leave a reddish residue (the water actually turns reddish between flushes) and when you flush the water, it's light blue and doesn't stay blue.These tablets leave the water a vibrant blue, and besides the fact that it's nicer to look at (than red), the water flushes in the same blue color, it cleans the rings in the bowl, and is easy to replace with just 1 tablet. I won't be switching again.

Very good item works pretty decent but you still need to scrub a little bit

I love this product.

Probably the best product of this kind on the market.Keeps the toilet bowl pretty clean and makes the water a nice blue color.Although I wish it wasn’t so expensive…

This product has a smell, however, it works great keeping mildew from developing in the toilet bowl in toilets rarely used downstairs.

Last firever

You still need to clean the room of the toilet with theseProduct says you don’t have to worry about this for four weeks and while I was looking at all the blue water I never noticed until the water became clear the buildup of product or waste that had built up below the room so I would caution anyone using those to make sure that on a regular basis they still clean the toilet carefully at least once a week

I have used these for years but, with covid, my grocery store has been out of these for a long time so I was happy to get them here. Although you have to be careful putting the disks in the toilet tank, or else you will get blue coloring all over your fingers, they work well