ALL-NATURAL: eco freindly toilet celaner based on good bacteria and all-natural ingredients. POWERFUL AGAINST GRIME: Tough on grime and preventive against limescale build-up. LOVELY SMELL: Powerful against unwanted odours and leaving your toilet with a fresh Eucalyptus Mint scent. STRONG EFFICIENT: Delivers a powerful probiotic clean in your toilet. No bleach or chemicals needed. EASY TO USE LIMESCALE REMOVER: dissolve a tablet, let it sit, give it a quick scrub, flush and you are good to go!.