2 X TOP QUALITY LASER TONER CARTRIDGES COMPATIBLE WITH HP 305X / 305A CE410X FOR HP LaserJet Pro 300 Color M351a MFP M375nw HP LaserJet Pro 400 Color M451dn M451dw M451nw MFP M475dn MFP M475dw PRINTERS PAGE YIELD: 2 X 4,000 @ 5% average coverage COLOUR: BLACK