Page Yield*: 2,500 For best results, store in a cool, dry place. Use within 3 years of purchase for optimal performance.*at 5% coverage (ISO/IEC standard) This remanufactured toner contains up to 60% new parts including brand new wiper blades, OPC drums, and other internal components, and an electronic smart chip for accurate toner level Compatible with the following Lexmark CX Printers: CX310dn, CX310n, CX410de, CX410dte, CX410e, CX510de, CX510dhe, CX510dthe Color: Black Please contact us first with any product issues. We want all of our customers to be happy because happiness matters.