The Genuine RISO VALEZUS S-8328 Gray Ink 1000mL OEM Case of 6 T2100 is a high-quality, original ink solution specifically designed for Risograph printers. This product comes in a set of six 1000mL bottles of gray ink, with a manufacturer warranty of 2 years for added peace of mind. Compatible with the Valezus T2100 model, this ink is ideal for achieving professional-quality prints with your Risograph printer. It is essential for those looking to maintain the original performance and color accuracy of their printing system.