Cleans and Prevents Build-Up: These toilet cleaners actively help reduce stains, limescale, and grime buildup with every flush, keeping your bowl cleaner and whiter with minimal effort. Safe for Most Toilets: Compatible with most standard toilet tanks, the non-corrosive formula is safe for plumbing, septic systems, and ceramic surfaces. 3 Pleasant Scents Included: This set includes three different fragrances, providing a variety of refreshing options that eliminate unpleasant odors and leave your bathroom smelling clean and inviting. Easy Pull Cord Installation: No tools or messy application required. Simply attach the included cord to your toilet tank and drop the cleaner in-installation takes seconds, and removal is just as easy. Long-Lasting Freshness: Each cleaner delivers continuous cleaning and deodorizing for up to 3 months. With three units included, you'll enjoy up to 9 months of hassle-free toilet maintenance.