OPAZ original two-in-one glass nail file and shiner produces a sophisticated smooth finish every time. Envied by all, in minutes dull unpolished nails transform. With no more need for metal files,  cardboard buffers or chemical paints, this product regenerates your nail back to their original beauty. With a lifetime guarantee on both file and shine surfaces - Opaz nail care, diminishes the need for any other alternatives, it's no wonder that Opaz premium 'File & Shiner' is a woman's best friend!