Bona Fide Beauty Glass Nail Care Tool: Expertly shape with genuine high grit Czech glass nail filers! This ombre blue fingernail files glides gently in any direction across the nail, with no irritating scraping sensation. A perfect nail tool even for those new to doing their own manicure at home! | Strengthen, Smooth and Harden Natural Fingernails At Home: regular use of etched glass files improve nails. Save time and money by achieving salon fingernails from home! | Trim, Smooth and Shape with Glass Nail Filers: forget traditional harmful nail files that tear, shred & damage the keratin layers of your nails. Bona Fide Beauty Czech glass fingernail files seal the keratin layers, leavings nails smooth with no jagged edges. | Nail File With Case: Bona Fide Beauty nail file comes with a blue hardcase, perfect for protecting your nail file in your purse, manicure kit, or even while travelling! | Made of Glass - Although tempered Czech glass is stronger and handcrafted with love and care, it is still prone to breakage if dropped or tapped against hard surfaces. Handle with care, and treat it like you would a favorite margarita glass.