The Brother LC30373PKS Multicolor INKvestment Tank Ink Cartridges come in a convenient 3 pack, perfect for extended printing needs. These ink cartridges are designed specifically for Brother printers and are compatible with models such as MFC-J6945DW, MFC-J6545DW, and MFC-J5945DW. The multicolor ink ensures vibrant and high-quality prints, making it ideal for various printing tasks. With a compact design and easy installation, these cartridges are a reliable choice for any Brother printer user looking to refresh their ink supply.