Five Stars
I love these glass nail files and cannot find them in any stores.  UPDATE:  These particular glass nail files will wear out eventually.  I have had a similar one for years that I found in a store somewhere.  It claimed to never wear out, and it hasn't.  I thought these nail files would be the same, but they're not.  I still enjoy using them, but they need to be replaced after time.
Rating: 4 stars