I teach community education classes that meet in a variety of locations. I use one of these binders for each class and I am able to keep a wide variety of material organized and ready to go. The labeling allows clear titles so I don't grab the wrong binder by mistake.
The clear plastic cover sleeve and inside front/back paper retainers (also clear plastic) are loose fitting do not hold documents securely. The cover sleeve is especially thin and I am sure it will tear easily in the corners under continuous use.
I use these binders for all of my classes. They come in a range of sizes and color so I can easy find the right size for each class and I don't get them confused with each other. Durable easy to use. Seriously my favorite binder I've ever used.