The product is a new genuine OEM Lexmark 55B1000 black toner cartridge designed for use with Lexmark printers such as the MS331, MS431, MX331, and MX431 models. It is a high-quality toner cartridge with a print technology of laser and a yield of 3,000 pages. The product is compatible with various Lexmark printer models and offers reliable and consistent printing performance. With this genuine Lexmark toner cartridge, users can expect crisp and professional-quality black prints for their documents and images.