PUMIE Toilet Bowl Ring Remover is 100% Pure Pumice Block on a handle that cleans via gentle abrasive action and shapes easily to flat or curved surfaces. It safely removes rust & lime build-up when chemicals fail. Now with a convenient handle, no more gloves are needed. This pumice rubbing stone rids toilets of rust and lime build-up when chemicals quit without harming porcelain bowls. It is ready to use, reusable, and safe for hands, children, and pets.