4+1 Packs Premium Replacement Toner Cartridge for Dell E525W Toner Cartridge Set For use on: Dell E525W Color Multifunction Printer Black yield: 2,000 pages | Color yield: 1,400 pages | Shelf Life: 24-36 Months Consistent Crisp output with sharp Lines, solid Shades, smooth Edges, eye-catching vivid colors. 24 months guarantee Manufacturer part#: 593-BBJX, 593-BBJU, 593-BBJV, 593-BBJW