The FMATIC Omni Ring Toilet Bowl Cleaner Deodorizer provides invisibly effective cleaning for any toiletDirect shipping available for a minimum quantity of 4 casesThe tension band is easily installed and fits nearly every toilet tank or tankless, round or oblong, offering 3060 days of cleaning with every flush, even in hard to reach, undertherim spots Its surfactantbased cleaner prevents mineral deposits and removes stains, including hardwater stains and fecal matter buildup, reducing labor time and the cost of multiple cleaners The OmniRing also eliminates one of the major sources of restroom odors, thus helping you maintain the clean image of your commercial restroom