What can be said about an economy model 3-ring binder? It is well constructed (all be it lightweight) the ring align well the rings close tightly the vinyl is well sealed overall a nice binder for the price.
I bought this black binder to blend in with the black glass TV stand. I added pocket dividers and now can store all the related manuals and documents in the binder. The black binder blends in so it is not noticeable but I can keep all related information close at hand. The D-rings allow me to place manuals in the pockets without bunching up.
The D rings are great--they allow the insertion of more pages and the pages lie flatter than with standard round rings. I bought this binder for storing recipes I've printed from friends or from internet food sites and it works quite well for this purpose.