The Harpic Active Fresh Toilet Cleaner Rim Block offers an easy way to maintain a clean and fresh toilet. It effectively removes limescale, dirt, and stains due to sodium dodecylbenzene sulfonate. The unique wave-shaped block freshens the toilet for up to 5 weeks while providing more cleaning foam with each flush. The pine forest scent ensures a pleasant experience every time. Key Features Clean and shiny toilet experience Wave-shaped rim block with anti-limescale Easy dirt removal features Fresh pine forest fragrance Lasts up to 5 weeks 2 times more cleaning foam with every flush Anionic Surfactants, Non-ionic Surfactants, Perfumes, Colorant. Block Material (Polymer/Plastic Casing).Harpic is a global brand specializing in toilet cleaning. This is a rim block designed to clean and freshen with every flush.Place the block unit securely over the rim of the toilet bowl where water flow is best. Ensure it hangs correctly inside the bowl.Caution: Causes serious eye irritation. Keep out of reach of children. If in eyes, rinse cautiously with water for several minutes.