ADVANCED ULTRA CLEAN TOILET BOWL CLEANERS: Continuously cleans and efficiently eliminate limescale, rust stains, and other stubborn dirt in water tanks, water pipes, and other parts of toilet bowls with every single flush. Premium Toilet Bowl Cleaners LONG-LASTING PERFORMANCE LIKE NEVER BEFORE: Upto 2500 flushes per Bottle, 3-4 Month Long Lasting per Bottle. EASY TO USE: Simply drop bottle into tank for an ultra Clean that keeps the dreaded toilet ring away and helps extend the time between deep cleans. FRESH & FRESH: With every flush, leaves your toilet bowl sparkling clean and smelling fresh with natural essential oils. NOTES: Fresh & Fresh toilet tank cleaner Bottle can reduce the accumulation of dirt in the toilet but are not replacements for toilet brushes. Thus, please clean the toilet with a brush before the use. COST SAVING: One bottle offers nearly the same efficiency and effectiveness as 40 tablets. DO NOT THROW AWAY: If the light blue color fades, gently shake the bottle to release more cleaning agent. (3-4 Month Long Lasting per Bottle.) [Warranty Information] Our products are supported with new replacement or full refund with no time limits if they don’t work.