The product is a lot of three genuine Lexmark 80C1SK0 black standard yield toner cartridges, specifically designed for Lexmark printers such as CX510de, CX510dhe, CX310dn, CX310n, CX410dte, CX410de, CX410e, and CX510dthe. These original Lexmark cartridges ensure high-quality printing with crisp, clear black text. Ideal for Lexmark printer users looking for reliable and compatible toner cartridges to achieve consistent and professional results.