The Roxgo HP 933 XL Black Ink Cartridge is designed for use with HP OfficeJet 6100, 6600, and 6700 printers. This high-quality ink cartridge in black color is compatible with the specified HP printer models, ensuring professional and crisp prints. With its inkjet print technology, this unit is a reliable choice for those looking to produce vibrant and long-lasting documents and images. Whether you are a home or office user, this HP ink cartridge is a cost-effective and efficient option for your printing needs.