The Ink Toner Cartridge BRTN433-4pk is a non OEM product compatible with various printer models including Canon, HP, Brother, and Packard Bell. This drum unit includes yellow, blue, magenta, and black colors, with a total quantity of 4 units. It is suitable for models such as HL-L8260CDW, Mfc-L8895CDW, MFC-L8900CDW, and more. The product does not have an expiration date, ensuring reliability and long-lasting use for your printing needs.