The Casio MS-88ECO is an environmentally-friendly desk calculator with both the upper and lower case made from recycled plastic. This model has a large and clear 8 digit angled display is powered by eco-friendly solar energy combined with a mercury-free battery. Functions include Tax, Currency, Mark up, correction key, 3 Digit comma markers and auto power off. The display is tilted to give an easy viewing angle. For use at home or at work. 8 digit desk calculator Solar powered with back-up battery (1xCR2032). Auto power off Extra large angled 8 digit display Non-stick plastic keys and rubber feet Upper and lower case made from recycled plastic Currency Conversions, Tax Calculations, Correction Key (Back Space), Key Rollover Function Command Signs Sign change key, Constants, 3 digit comma marker, 3 key memory, Square root Double + Key, Ergonomically Shaped Keys, Key Rollover, Mark Up, Memory stored after switch off Display Size (WxH): 80x23mm Dimensions (HxWxL): 131x103x145mm