I have been using these binders for years I have found them free of any dysfunctional mechanical parts easy to maintain and keep my files in perfect order. They come in various colors and sizes. I highly recommend them for anyone that is lookijg for a loose-leaf binder.
These binders hold up to just about anything. While more expensive we have used the same ones for three years and they still look new/barely used! Highly recommend for middle school/high school.
In general binder quality is good but as a result of handling in the store it was scratched on the front. Of course I did not notice that at first but only when got home. Very disappointing.