Now you can clean your toilet bowl without the hassle of scrubbing. And no more messy liquids, either. Just drop one KOHLER toilet cleaning tablet into your bowl and let the tablet do the work. Toilet cleaning tablets begin working immediately to remove urine, rust, and other mineral deposits in hard-to-reach places where brushes cant go. In as little as ten minutes you can have a sparkling bowl, or drop one in overnight for those tougher jobs. Fresh Ocean scent.