This Texas Instruments TI-89 graphing calculator is a reliable tool for any math enthusiast. With regular size keys and a regular display size, it's easy to use and perfect for handheld use. It runs on batteries and is made in China. This model, the TI-89 Titanium, is a top-of-the-line calculator from Texas Instruments.

This calculator is great for anyone who needs a powerful tool for business or education. It's been well-maintained and is in excellent condition. Don't miss out on this opportunity to own a reliable and efficient calculator.