Coated with a patented Anti-Bacterial Finish, this non-absorbent glass nail file resists bacteria, so that it stays clean and hygienic. The beautiful, high-quality glass delivers the ultimate nail file experience. Both sides of the file can be used to smooth and gently file nails while preventing breakage and splitting. It's suitable for sensitive nails and skin. After use, it can be placed under sunlight or UV light for 2 hours to sterilize. The high-quality glass is made to last.