KENA CO.,LTD professional manufactures the nail files in China,providing acid-etched high quality glass nail file, tempered glass fingernail file, glass nail shiner, no toxic substances ,get a approval of ROHS and safe for baby and pregnant women. Free samples and small trail order welcomes.Luxury Crystal Nail File Glass with CaseItem Code:16490Material: Tempered Glass Design: Semiconductor Particle nail file Size: length 90mm x thickness 2.3mm x13mm widthColors: ClearFeatures: Made of 100% Tempered GlassHas uni-application surface (side). The other side (Plane Glass) does nothing.Does not have sanding gritsEnvironmental Friendly nail fileHigh Durability, Easy CareMulti function at once (Gloss & Shape)Shine your nails without nail polishPerfect for manicures and pedicures on both men and womenHygienic product ,No toxic substances Most safe & best BABY NAIL CARE toolAlso, it is great for the nurse, Forensic and other professionals who are not allowed to wear colored nail polish to work.