This Texas Instruments TI-30X IIS Scientific Calculator in blue is a reliable and efficient tool for all your mathematical needs. It has been tested and works perfectly, ensuring that you can complete your calculations with ease. The calculator is handheld and features a regular sized display, making it easy to read and operate. The TI-30X model is a classic choice for anyone in need of a scientific calculator. It runs on both solar and battery power, making it an ideal companion for students and professionals alike. This calculator comes with a cover and is categorized under Calculators, Office Equipment, Office, Business & Industrial, making it a versatile tool for any setting.