This black Lexmark ribbon, model LEX1040990, is a genuine and original product with six in a pack. It is designed for use with Lexmark 6400/6408 printers. The ribbon delivers high-quality prints in black color, making it ideal for use in a variety of printing tasks. Its durability and reliability ensure that you can use it for an extended period without experiencing any issues. The ribbon is compatible with certain printer ink, toner, and paper, making it an ideal product for anyone in need of high-quality prints.