This vintage TI-89 graphing calculator is a reliable tool for any math enthusiast. With its regular size and handheld design, it is perfect for on-the-go calculations. Powered by batteries, it is always ready to use whenever you need it.

The calculator is manufactured by Texas Instruments and has regular key size, making it easy and comfortable to use. It is a graphing type calculator with a regular display size that can tackle complex equations. This calculator is perfect for business and industrial use, as well as for office equipment. Get your hands on this vintage calculator today and enjoy the convenience it offers.