The Texas Instruments TI-83 Graphing Calculator is a reliable and efficient tool for problem-solving. With a regular key size and display, this handheld calculator is perfect for both basic and graphing functions. Powered by batteries, it is convenient for use on the go. The TI-83 model is well-known for its capabilities and the added convenience of a slip cover adds to its functionality. This graphing calculator is a great addition to any office or workspace.