This is an old solar-powered calculator made by CASIO. It's a well-built model with two-tone molded keys. This item has been cleaned, including the case and internal switches, and is in working order. Please check the photos for the condition of the item, as there are minor scratches, stains, and print peeling. While the buttons and display currently function without issue, due to its age, the operation after shipping cannot be guaranteed. *No accessories are included. *The ruler shown in the photos is not included with the product.