Wilson Jones Hanging DublLock Round Ring Binder, 1 inch Cap, WhiteHanging binder features retractable hooks and locking round rings for maximum ease of use. Hangs in most standard file cabinet drawers or file frames. Available in flexible polypropylene or heavy-duty vinyl to meet your needs. With full-size cover and spine inserts. Capacity Range [Max]: 1"; Sheet Capacity: 175; Color(s): White; Binder Sheet Size: 8 1/2 x 11.