Erlinda Solingen Nail Care Set Manicure Set Grooming Kit for Toe Nail Toenail Care Pedicure Travel Tool Kit Set Women Men GermanyAbout this item ERLINDA Micro Crystal File, Ceramic File, also known as Mineral File, Oxyde Ceramic Nail File In the context of research and technology, it was necessary to translate new findings into innovative materials and products. The microcrystal file from ERLINDA differs significantly from conventional files. The nature of the mineral file, which was produced in a special process and hard fired at 2,000 degrees, guarantees an almost unlimited