United States Pumice Company -- 100% Pumice. Removes Unsightly Toilet Rings When Strong Acid Cleaners Fail. No Chemicals Or Harsh Detergents and Won't Scratch. Reinforced Handle Stone Shapes Easily To Flat and Curved Surfaces.

• Can be used to clean almost any hard surface
• Great for removing unsightly toilet bowl rings
• Ideal for cleaning stubborn stains in sinks, tubs and showers
• Suitable for removing rock-hard mineral deposits around faucets and drains
• Can be used on lime- and algae deposits in swimming pools
• Helps clear rust and grime from workshop equipment, garden tools, metalwork and piping
• Ideal for removing unwanted paint from tile, masonry and concrete surfaces