Automatic Toilet Bowl Cleaning Action: Each drop-in blue gel toilet tablet activates in the toilet water tank, releasing a powerful formula that targets hard water ring stains, mineral deposits, and buildup for effective, continuous bowl cleaning with every flush.Fresh Scented Odor Eliminator: These automatic tablets help eliminate unpleasant bathroom odors by releasing a consistent scent freshener. The chlorine-free formula deodorizes your toilet bowl without an overpowering smell, leaving a cleaner, fresher environment.