Removes stubborn rust & hard water stains! Clinging action for better cleaning. Leaves a fresh, clean scent! Cleans. Brightens. Deodorizes. Extra Strength Sno Bol Toilet Bowl Cleaner cleans tough stains - even stubborn rust and hard water stains. Its thick liquid formula clings to the entire bowl to provide longer contact time above and below the waterline. Regular use of Extra Strength Sno Bol keeps toilets sparkling bright. It deodorizes even under the rim leaving your bowl with a fresh clean scent.