The Texas Instruments TI-84 Plus C Silver Edition Graphing Calculator in Grey is a handheld device with a regular size display and key size. It is a versatile tool that serves as a basic, financial, and graphing calculator, making it suitable for a variety of tasks. This model, TI-84 Plus, is equipped with an LCD display and calculus capabilities, making it a reliable choice for educators, students, and professionals in need of a powerful and portable calculator for everyday use. Powered by batteries, this graphing calculator offers convenience and efficiency in one compact package.