1. QUICK, VERSATILE: Pumice stone for cleaning calcium sediment, limescale, and hard water rings on toilets, sinks, bathroom tiles, and other ceramic surfaces. It can also be used to remove rust and oil stains from grills and ovens. 2. MATERIAL, PRINCIPLE: Pumice stone toilet bowl cleaning tool is made with pumice. Stubborn stains can be quickly removed by rubbing, without creating any scratches. 3. CONVENIENT: Our pumice stone has a handle, no gloves required, and can be easily used to clean stubborn stains from toilets. Designed to last longer and clean better. 4. TOUGH: It is more than 30% more dense than similar products to last longer and clean better. 5. HIGH QUALITY: A set of 2 pumice stones provides reliable performance for cleaning your house. One can be specifically for your toilet, and the other one can be for your kitchen sink, bathroom sink, or other areas.