This Casio FX-991MS scientific calculator has been tested and is in used condition. It features a regular-sized keyboard and is powered by both solar and battery sources. With its handheld size, it is easy to take with you on the go.

This calculator is perfect for business and office use, as well as for students in need of a reliable scientific calculator. The model FX-991MS is a well-known and trusted choice for its accuracy and functionality. Get yours today!