The HP 923 CMYK Original Ink Cartridge 4-Pack is a set of high-quality ink cartridges designed specifically for HP printers in the Officejet Pro 8120 series. This 4-pack includes cartridges in cyan, yellow, magenta, and black colors, providing you with a wide range of color options for your printing needs. With an estimated yield of ~500 pages for black and ~400 pages for each color, this cartridge pack is ideal for producing professional-quality documents and images with vibrant and consistent colors. The genuine HP brand ensures reliable performance and compatibility with your printer.