This robust Aurora HC133 pocket calculator is ideal for primary school students. The calculator features a clear 8 digit LCD display, as well as durable, large hard keys. With 4 constants and a sign change key, the calculator is both solar and battery powered. This pack contains 1 white calculator. It has a large numeric keypad for easy viewing and entry, +/- change sign key, percentage key, and square root key. The calculator also has an auto power off function. Unit Weight: 50g. Unit Size WxDxH 70x115x15mm.