The 4 pack 972X 972XL Ink Set is designed for use with HP Pagewide Pro printers, including models 452dn, 452dw, 477dn, 477dw, and 552dw. These compatible ink cartridges offer the same page yields as OEM cartridges, making them a reliable choice for high-quality printing. The set includes cyan, yellow, magenta, and black ink cartridges, providing a full range of colors for various printing needs. With this ink set, users can enjoy consistent and vibrant print results with their HP printers.