Five Star sewn binder is specially designed to meet the unique needs of busy students. Impressive 4" capacity comes from a combination of the 2" rings and the multiple storage options including a number of expanding pockets, stretch materials and an expanding file. This binder delivers flexible organization and is tough enough for the rough stuff. 4" capacity zipper binder is durable. Lasts All Year. GUARANTEED!* 380 sheets in rings, 150 sheets in pocket, 570 sheets in file Shoulder strap included and binder fits in a backpack.