Make sure you’re productive at school or work by getting The Classic zipper binder from Case·it. This durable, lightweight, 3-ring binder is the most essential item on your off-to-work or back-to-school list. The Classic is made with rip-stop material to prevent punctures and tearing – this 2 inch O-ring zipper binder can hold 375-400 sheets of paper and expands to hold nearly three inches worth of materials from your classes or work inside its zipper closure. This O-ring binder is designed with a spine that is scored so that with a little pressure it will lay flat but then go back to its original shape. Plus, the angled zipper keeps the gusset out of the way – it’s is self-correcting! Just feed it back to the gusset and rezip it closed to keep all of your papers inside. Inside the zipper pocket are two elastic mesh pockets that can hold up to a full-size sheet of paper and 4 plastic dividers to separate your classwork.