Finally a binder that can survive a high school student for the whole year! While other binders' covers start to tear away at top and bottom (including those labeled "Durable") these covers stayed fully attached from August through June. The only weak point is the clear vinyl panel on the cover where users can insert a cover sheet; my son removed the damaged panel in late spring leaving behind a set of binders that is still structurally sound. Last year's binders are now storing last year's work and we bought a new set for this school year. No more duck tape and mid-year replacements!
I buy these binders for my two high school kids. They hold up well and one binder lasts the entire school year. The corners do not bend or rip despite being jammed into stuffed backpacks every day. The rings open and close easily and align properly even when filled to capacity. The only con we've experienced is that the inside vinyl pockets don't hold up that well.
I bought this to make a custom cookbook. The features of this binder made it extremely functional. And combined with the "Better Dividers" 5 tab set the customizing options are endless. I am definitely going to buy more.