Whip those nails into shape with durable glass files that might just be prettier than your manicure. These have a long lasting grit that cleans easily with soap and water. Filing Trivia - glass files can be used indefinitely, are safer than emery boards, and work perfectly on both natural and synthetic nails! -Durable, long lasting grit -Stays clean with just soap and water -Safe on natural, gel and acrylic nails -Includes clear travel case