Opened, it's a notebook. Closed, it's a compact box. Side opening design features a hinged writing plate for hard writing surface and to prevent write-through on unused forms stored underneath. Extra forms store under hinged aluminum strap. Holds Paper Size: 8 1/2 x 12; Clipboard Actual Size: 9w x 1d x 13h; Clipboard Material: Aluminum; Clip Capacity: 1/2".