Wilson Jones 3 Ring Binder 1 Inch, Round Ring Binder, Basic, 368 Series, Dark Blue, (W368-14NBL) Traditional three ring binder with round rings has a 175 sheet capacity in the 1 inch binder size with 2 convenient interior pockets. Durable polypropylene construction ensures long-lasting use and is better for the environment than vinyl. Binder contains 100% recycled chipboard with 75% post consumer waste. Dark Blue Binders.