Saunders RingMate Plastic Storage Clipboard, Letter Size, 8.5 Inch x 12 Inch (00480) Durable polypropylene construction Features locking hinge for use as easel stand (patent pending) Strong low profile clip with rubber grips holds up to 1/2 Inch paper securely Internal D Style 3-ring binder Large internal storage holds 1 and quot, capacity and snaps closed to keep materials secure and safe from weather.