The RISO S-8113 Black F II Type Duplicator Ink is a high-quality ink product designed for use with Risograph printers. This box includes 2 bottles of black ink, specifically formulated for the S-8113 model. Ideal for producing crisp and professional-looking prints, this ink cartridge is a reliable and essential component for any printer setup. With the trusted RISO brand behind it, users can expect consistent and excellent results when using this ink for their duplicator machine.