The Brother LC3217 Genuine Original Ink Cartridges are specifically designed for use with Brother printers. This pack of 4 cartridges is perfect for those looking to ensure high-quality prints in black ink. With a genuine original print technology, these cartridges are ideal for those wanting reliable and consistent results every time they print. Designed for inkjet printers, these cartridges are a convenient and efficient choice for anyone in need of top-notch printing supplies.