Appears to be sturdy. Hinge between the cover and spine is very flexible and appears to made of a material distinct from the cover itself. Since this is the point where binders most often fail I expect that this one should last a long time. Rings seem to have a strong spring and won't open accidently. It has a non-glare pocket onthe cover for a title up to a standard 8-1/2" x 11" sheet. I do wish it had a larger window on the spine for a label/title.
So far very durable overall. Inside pockets are holding up but of course it's new. No lock for ring access. Lazily pull open rings and your done. Cute and tamper proof outside front and side labeling.