Compatible with part number Lexmark 53B1H00. For use in Lexmark MS817, Lexmark MS817n, Lexmark MS817dn, Lexmark MS818dn printers. Each Black cartridge has a capacity of 25,000 pages at 5% coverage. Do it Wiser Smart Toner Cartridges are guaranteed to work flawlessly, certified by ISO 9001 international quality standard, ISO 14001 environmental management, and free of lead and hazardous materials RoHS Lead Free.