This set of ink cartridges is designed for use with HP Officejet Pro printers. The pack includes four cartridges in black and magenta, and they are compatible with various models, including the 7740, 8710, 8210, 8720, 8216, 8715, and 8702. These cartridges are ideal for those looking for high-quality ink without having to worry about running out of ink quickly. With this set, you can easily print documents and images that are vibrant, clear, and sharp.