I have been using the staples heavy-duty binders with D rings for quite awhile and find them very durable. I like the fact that one is able to place a sheet of paper inside the outside cover and the binder edge so that the contents are easily identifiable. I use the binder continuously so I really appreciate the fact that even after continuous use D rings do not open or expand as many other binders I have used in the past do. There is nothing worse than having a full binder and then the ring opens and everything falls out. The price for these is also great especially when on promotion.
A decent three-ring binder with clear view cover and interior pockets. But thin material is not what should be expected as "heavy duty". Overall a great value at the promotion price.
I have been purchasing Avery binders in this size and style for years. Thanks to a rebate offer in my Staples store I decided to purchase the Staples brand this year. Wow! Is this a great house-brand product. It is exactly the same sturdiness and size as the Avery binders I've been buying. I put it through a few stress tests already and the Staples brand has shown itself equal in every way to the brand name version. I have absolutely no regrets about making the switch and can see myself choosing more Staples brand items in the future.