2 Packs of Black Compatible Laser Toners Replacement for Brother TN336 Best Printing Quality with Page Yield of 4,000 per Black @ 5% Standard Coverage Rate. For Use in Brother Printers: HL-L8350CDN , HL-L8350CDW , HL-L8350CDWT and DCP-L8450CDW , MFC-L8600CDW , MFC-L8650CDW, MFC-L8850CDW PRINTOXE® Brand 100% Compatible in Retail Package Shown in Image. Shelf Life exceeds 24 Months.