These magnificent files are hand crafted in the Czech Republic so file sizes may vary slightly.   Also included are plastic, protective, carry or storage tube for each file in a coordinated color.  Each tube has a cap which closes the tube and keeps the contents secure.  Protective plastic sheaths are also included with each file.Czech crystal glass nail files are the highest quality files available.  There are imitations produced in Asia, but they do not compare in quality.  If you have never used these Czech files before, you will be amazed!  They are two sided, meaning they have an abrasive surface on both sides of the file.  The abrasive surface is etched into the crystal glass, meaning the "grit" will never wear out!  They are strong and durable, yet gentle.  These files are perfect for all nail care, even in diabetics, cancer patients, children, infants, and even your beloved family dog.  These files will help prevent nail splitting and chipping when used regularly.  They are perfect for both natural and artificial nails.   You will notice the difference the very first time you use these Czech crystal glass files.These Czech files are considered "green," or eco-friendly.  They do not wear out.  You will never have to purchase another, although you may want to because of the luscious color selection!  And please keep in mind, these Czech files work absolutely wonderfully on both natural and artificial nails.  They are perfect for the professional or for home use.  They are a must have grooming item for anyone wishing to look their absolute best!    You can easily clean them with soap and water or can even be cold sterilized or autoclaved.