DeskMate II with Calculator is a necessity for anyone who needs a weather-resistant, mobile office that looks professional & helps you stay organized. This portable desk has a handy, solar / battery-powered calculator & a strong, low-profile clip with rubber grips. The metal clip safely holds up to a 1/2" stack of important documents or a 1/2" thick notepad. The internal storage compartment can hold writing instruments, notepads, literature & much more. Proudly assembled by adult Americans who are blind or who have disabilities. Manufactured of lightweight, durable polypropylene. Holds Paper Size: 8 1/2 x 12; Clipboard Actual Size: 10w x 2 1/2d x 16h; Clipboard Material: Polypropylene; Clip Capacity: 1/2".