Quick-Flap calculator panel. Interior organizer for business cards and documents. Includes 8.5″ x 11″ writing pad and 3″ x 3″ note pad. Refills available at leedsworldrefill. Refill item number 9091-01 8.5″ x 11.5″ White, wide Rule perforated Writing Pad & 9091-03 3 x 3″ White,Unlined Perforated Writing Pad. Pen not included.