Ensure consistent printouts from your accounting calculator with these DataProducts universal black/red calculator ribbons. Keep your calculator running smoothly with these calculator ribbons. The black and red design lets you print negative and positive figures, and the two-count package provides a steady supply to help you keep up with daily accounting tasks. A spool layout feeds the ribbon through your device for continuous operation. With a simple design, this two-pack of DataProducts universal calculator ribbons allows for fast, easy setup.