Our extraordinarily gentle smoother was designed to remove ridges, yellowing, scratches and imperfections from nail surfaces. When used as directed, it smoothes, cleans and clarifies nails by exfoliating dead, damaged, dull and soiled nail cells without ever thinning or weakening nails. Our Micro smoother is essential to achieving a flawless shine and to prepare nails for optimum penetration of NAILBUFFS Natural Buffing Cream. It should be used only twice a month or if a nail becomes scratched. It is a must for to remove ridges in nails on your toe nails too!