About the Product Domestos brings to you Chlorine Toilet Rim Block that is used for a cleaner, fresher-smelling bathroom. Power 5 Rim Block releases a rich foam, prevents limescale, removes dirt, leaves the toilet bowl shiny, and releases a fresh and long-lasting fragrance in your bathroom. It helps you maintain the toilets freshness and cleanliness. It gives you a clean and safe toilet after every flush.