Not quite what I expected...
I had bought a glass nail file that I loved and expected these to be the same, as they look the same in the pictures.  The price for 5 was too good to pass up.  I was a little disappointed in that the edges on these are not tapered like the other file so they don't fit as easily behind nails.  They still do a good job of getting a clean, smooth finish, but are just more awkward and cumbersome to use.  Also they are a bit bulky for the cases and have to be pushed hard to get them in, rubbing the sides as they go.
Rating: 3 stars