The Calculator Clipcase Clipboard by Dexas is perfect for use at home, school or on the job. It holds A4 paper and letter-sized files, forms and pads and is made from a high-impact, break-resistant and durable plastic. The interior is easily accessible as the case can be opened with one hand, and it is weatherproof to keep contents safe from wind and dust. The handy dual powered, full function 8-digit calculator features memory and percent functions and a large LCD. Designed and made in the USA.