The cutter is suitable for both manicure and pedicure as it allows precise handling and facilitates nail styling: grinding, trimming, removing gel, polygel, acrylic, etc. Perfect for adjusting or removing gelcoat. The wear-resistant material allows the edges to remain stable for much longer. It does not heat the nail and does not cause discomfort. Sterilization resistant. On each cutter you will see a color band that shows you the level of roughness. · BLACK - Super hard/super coarse · GREEN - Hard/coarse · BLUE - Medium hardness/medium · RED - Fine/fine · YELLOW - Super fine/extra fine