Case-it W350,  2 Inch Round Ring Zipper Binder with Book Holder on Front, 1 unit,Purple, Size - 13 X 12 X 3 inch 2" Round Ring Front expandable holder can fit a large text book handle and shoulder strap included inside pocket Available in 6 colors Front expandable holder can fit a large text book Handle and shoulder strap included Inside pocket Available in 6 colors 2" inch Round Ring Includes inside pocket