Storage clipboard with a built-in calculator is a necessity for anyone that needs a professional-looking mobile office. It helps you stay organized & is weather-resistant. Solar-powered & battery-operated calculator is perfect for making quick calculations. Strong, low-profile clip features rubber grips to secure your documents. The metal clip safely holds 1/2" of important documents & notepads. The molded edges fit snugly together & keep your materials protected & secure. Open the break-resistant clipboard from the bottom to reveal a large internal storage compartment for stowing additional items. Holds Paper Size: 8.5 x 11; Clipboard Actual Size: 10 x 16; Clipboard Material: Polypropylene; Clip Capacity: 0.5".