The product is a genuine set of 4 HP 981A cartridges designed for use in PageWide 556 and 586 printers. The cartridges come in cyan, yellow, magenta, and black colors, ensuring high-quality printing results. As genuine/original cartridges by HP, they are specifically designed to work seamlessly with HP printers, providing reliable and consistent performance. The HP 981A model is compatible with the 586 printer, making it easy to find suitable cartridges for your printing needs.