This Texas Instruments TI-30X II S calculator is a must-have for anyone in need of a reliable and efficient scientific calculator. With solar power as its power source, you don't have to worry about running out of battery during important calculations. The regular-sized display allows for clear and easy reading of numbers and functions. It's perfect for business and industrial use, as well as for students and professionals in need of a dependable calculator. The TI-30X II S model offers financial, scientific, and regular calculation modes, making it versatile for any task. So don't miss out on this great opportunity to own a top-quality calculator.