Includes 4 packs (Black, Cyan, Magenta, Yellow) v4ink compatible Dell E525W toner cartridges Print more and cost less: 2,000 Pages per Black cartridge, 1,400 Pages per Cyan/Yellow/Magenta Cartridge at 5% coverage (Letter/A4) Suitable for Dell Printer: Dell Color Laser E525W Printer Reliable printing results: Vivid color, great reliability and high quality prints Perfect partner with your printer. Easy to be installed and recognized