The product is a set of 950XL 951XL ink cartridges designed for HP OfficeJet Pro printers including models 8600, 8610, 8615, 8620, 8625, 8630, 8660, and 8640. These ink cartridges come in multi-color with individual colors Cyan, Yellow, Magenta, and Black. They feature a reset chip for easy monitoring and are compatible with specific HP printer models, ensuring high-quality printing results. The unit quantity can vary based on selection, and the manufacturer provides a 3-year warranty for added assurance.