The RISO S-6930U F Type Genuine Black Ink Box of 2 is a high-quality printer ink product made in Japan. Specifically designed for RISO printers, this OEM sealed box contains genuine black ink perfect for producing crisp and professional-looking documents and images. Compatible with models such as SF9450/SF5450/SF5430/SF5230/SF5130, this product ensures reliable performance and consistent results for all your printing needs. With a total of 3 units included, this ink box is ideal for both home and office use.