This compact and stylish 8 digit handheld calculator features the smart arc design that allows the calculator to sit comfortably in the hand whilst an upward folding cover, that can be rotated a full 360 degrees, protects the calculator at all times. Despite its compact size, this hand-held calculator has a large LCD display, so you can easily read all numbers at a glance. The user friendly layout with a clear keyboard and big colour-coded keys ensures easy and error-free entry of figures. Compact and lightweight with an arc shape design 8 digit handheld calculator with large LCD display 360 degree upward folding durable cover Upper, lower case and hard cover made from Canon recycled material Display Screen Size: 35.21 x 11.44mm Constant Calculation Functions Keys: Percentage %+/, O Key(s), Square Root and Total Memory: YES (M+, M-, RM/CM) Power Source: Battery (LR1130 x 1)