The Brother Genuine TN436 BK Super High Yield Toner Cartridge is a high-quality product designed specifically for Brother printers. With a page yield of up to 6500 pages, this black toner cartridge is ideal for printing large volumes of documents and images. As a genuine OEM product, you can trust that it will deliver consistent and professional results every time. This unopened box ensures that you are getting a brand new cartridge ready to be used in your printer. Thanks for your interest in my item.