These Oxford Wave Binders are sturdy, cool and handy. Store up to 350 sheets of paper in the 3 ring binder, or file smaller amounts of paper in any of the 4 coloful wave pockets. Made from durable, non-stick materials, these round ring binders are ideal for students, teachers and anyone who wants useful and fun organization for their work. The Wave Binders have a thick, flexible poly cover but won't weigh you or your backpack down. Binder covers are transluscent and let the colors of the 4 wave pockets in each binder show through. Wave pockets are surf shaped, colorful, and they come in orange, blue, purple and green. Even when working and organizing, you'll have a hint of ocean breeze and calm. You can keep your work the way it should be: cool and collected. Sold in 4-packs.