Keep yourself organized and your papers protected in the Case-it 3 Inch Mighty Zip Tab Zipper Binder. The Mighty Zip tab has standard ring size of 3 inches that holds up to 600 sheets. With that much room, keeping up with all of your classes is a breeze! For even more organization this binder comes with an expanding file folder that helps you separate 5 subjects easily. Access your files easily when the binder is closed with the patented U-shaped opening on the gusset. With no shortage of interior and exterior zippered pockets you can keep more items contained in one place. The exterior zipper pocket is great for storing a couple of pencils or pens for quick access. Keep your schoolwork from falling out or getting damaged with our durable zippered gussets. The zippers are self correcting too! Just slide them all the way back down the gusset and they will fix themselves. Conveniently the gusset is made with a ripstop material that keep tears from spreading. Take your classroom with you with the handle and shoulder strap that comes included.