Elena complete professional nail file set It is made of materials that do not rust or interact with the skin, which would cause inflammation and allergies if they scratch the delicate skin at the end of the fingers. It is also at a level of sharpness so that it does not splinter the nails. It also contains a polishing group so it softens, sculpts and polishes the nails, as well as removes Remnants of dead or hardened skin at the base of the nails.