The WC Frisch Deluxe Toilet Rim Block is the first toilet fragrance to give your toilet a unique scent that lasts for a week, while at the same time ensuring hygienic cleanliness.1. Cleaning foam: cleans your toilet with every flush.2. Dirt protection: reduces the build-up of limescale and dirt.3. Premium fragrance: provides a unique, long-lasting fragrance.4. Hygienic cleanliness: for toilet hygiene.