Bio Sana BIO SANA Natural Line callus file ash wood natural

The popular cornea file is now largely handmade in various types of wood. The wood from cultivated forests is very stable and dimensionally stable, is varnished with a water-based varnish and offers optimum protection against water and alcoholic substances. Do not place the file in water or in an alcoholic solution, immerse it only briefly. The different abrasive films, 60 and 100-grain are antimicrobial, sanitized treated. This permanently protects against microbial infestation. The development of unpleasant odours and the destruction of the material are permanently prevented.