SnoBol Toilet Bowl Cleaner is an easy to use product that does a good job fighting rust stains plus disinfecting and deodorizing the toilet bowl. It needs some time to set in, so I wait for about ten minutes after I pour some of this cleaner into the toilet bowl and then scrub with a brush. Usually, only minor scrubbing is required since most of the work is already done and rust stains are gone. I have used a better known (and more expensive) brand before, and I can say that ShoBol is much better.
SnoBol comes in 32 fl.oz. bottles with the typical curved nose that helps to clean under the inner ridge of the toilet bowl. The cap is child-proof. One bottle costs under $2 and usually lasts me for a couple of months. I am very pleased with this product.