Janitorial 100% Pure Pumice Scouring Stick, Used By Cleaning & Maintenance Trades, Food Service Chefs, Painters, Plumbers, Mechanics, Farmers, Pool Services & Other Professionals, Hard Surface Cleaner For Removing Lime, Rust & Paint, Cleans Porcelain, Ceramic Tile, Concrete & Iron, Removes Toilet Bowl Rings, Stubborn Stains, Hard Mineral Deposits, Algae, Paint, Baked On Food, Grease & Carbon Build Up, Environmentally Safe, Contains No Hazardous Substances.