Bloo In Cistern Toilet Blocks Original Blue 2 Pack offers an easy and effective way to maintain a fresh and clean toilet. These powerful toilet blocks are designed to be placed in the cistern, where they release a pleasant blue fragrance with every flush. They help to prevent limescale build-up, keep your toilet bowl clean, and leave it smelling fresh. The 2-pack provides long-lasting freshness, making it ideal for households or commercial spaces. With Bloo, you can enjoy a hygienic, refreshing toilet experience with minimal effort.