YOKUU’s Toilet Bombs will blow your mind. Powerful against smells, tough on grime, and preventive against limescale build-up, cleaning your toilet has never been so easy. Simply dissolve 1 tablet, let it sit for 15-30min, give it a quick scrub and you’re good to go! All thanks to billions of good bacteria.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 Thyme Sea Salt 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!.