With the 4-Way Perfect Nail Buffer, you create shiny nails within 60 seconds without nail polish and file the nail into perfect shape. This nail file has four different functions: one for the nail edge, three for the nail surface. The file not only gives a shiny effect, but you also file the nail into shape and length. Not allowed to wear nail polish at work? With the 4-Way Perfect Nail Buffer, you create a brilliant shine without painting.