This storage clipboard even includes a handy calculator for on-site estimates and inventory. Calculator is powered by solar/ battery (batteries not included). Has easy-to-read LCD screen (batteries not included). Easy-access bottom opening and large internal storage compartment for pads, forms, pens, etc. Low-profile clip has integrated rubber grip pads to hold materials firmly and safely. Cover snaps shut to keep items in and weather out. Durable polypropylene. 10w x 2 5/8d x 16h.