The Dell MW558 High Yield Toner Cartridge in Black is specifically designed for use with the Dell 1720 Printer. With a high yield capacity, this toner cartridge ensures long-lasting and high-quality printing. The laser print technology guarantees crisp and professional-looking black prints, making it ideal for professional documents and images. Each pack includes 4 cartridges, providing an ample supply for your printing needs. Trust the Dell brand for reliable and consistent printing results.