What you will get: 1 Pack Replacement for Lexmark 50F1000 Black Toner Cartridge. Please confirm the model you need before purchasing to avoid mistaken purchases. Printer Compatible Models: MS310 MS310d MS310dn MS312 MS312dn MS315 MS315dn MS410 MS410d MS410dn MS415 MS415dn MS510 MS510dn MS610 MS610de MS610dn MS610dte MS610dtn What are the advantages of our products? Improve page output, print more and clear. The text is clear and sharp without ghosting, allowing you to obtain satisfactory manuscripts. Premium Materials: Our 50F1000 toner cartridges are harmless to your printer and your printer are able to last longer. Using green environmental protection materials to ensure no flying powder, no peculiar smell, and protect printing health. Excellent performance: Our 50F1000 toner cartridges are tested to ensure consistent images/text seen on the printer in component and print tests. Giving you high quality and satisfying toner cartridges for your home or office printer. Applicable to many scenarios, such as high-end offices, schools, governments, homes, banks, hospitals, or large enterprises. Excellent after-sale service: We attach great importance to your shopping experience. If there are any quality problems with the products you receive, please feel free to let us know. We always provide the best service and satisfactory solutions, and we are promise to replace or refund each defective item.