Very durable binder. Will take many trips in and out of the locker and still function perfectly. Also purchased 3 other 11/2 inch binders for other classes.
I haven't put it to the test yet. I was under the impression that there was an additional pocket on the right side. We will see how they hold up by May 2019 with a 7th grader and 2 college students.
We use these for our corporate documents because they open easily close thoroughly and provide security in color-coded notebooks (binders). Their heavy duty construction means we should not have to replace them!