A-Maz Water Stain Remover removes the toughest stains on glass, chrome, porcelain, fiberglass, metal, tile - water stains, mineral deposits and sealant stains. Our water spot remover can also be used on all types of bathroom surfaces to remove hard water stains, lime scale, oxidation and soap scum. Removing water stains is easier now than ever before especially with the nylon pad that comes with this water stain removal product. Pad measures approximately 6" x 3-1/2" x 1". Note: Do not use on surfaces that can be harmed by the use of a mild abrasive.