This glass nail-file with extremely gentle coarsening on its abrasive surface is noted for the following advantages:
- High abrasiveness, with the result that it prevents nails fraying and guarantees the smoothness of nail surfaces
- High resistance to breakage, thanks to the concurrent use of heat and chemical strengthening
- Long lifespan of abrasive qualities thanks to the use of a protected mixture during their hardening
- Their length of use has no effect on their quality
- Not liable to corrosion and they can easily be washed in water or sterilized
- Allow the processing of both natural and artificial nails
- Their chemical make-up does not adversely affect health