The DataProducts Printer Ribbon Casio Ir-40t, R1427 NIB is a high-quality ink ribbon designed for use with dot matrix printers. It is compatible with various brands, including Casio, and is suitable for models such as the Canon Pro-100 and Casio ir-40T. This red and black ribbon comes in a single unit and is ideal for producing clear and crisp prints. With the DataProducts brand reputation for reliability, this printer ribbon is a dependable choice for all your printing needs.