The large capacity finder is adequately sturdy for occasional use during a period that I use it about two years. I open such binders about twice a month and have found no problem or defects during such use. The binder has pockets inside each cover that are useful for temporary accumulation of similar pages that will be filed later. The surface coating of the covers is durable for normal shelf access use and resists stains. The rings snap open and close evenly and conveniently with little effort.