This Includes: 6-Pack Black Okidata 42377801 Compatible Ribbon Cartridge Replacement Compatible with: Dell 2230d, 2330d, 2330dn, 2350d, 2350dn, 3330dn, 3333dn MFP, 3335dn MFP Page Yeild: 4 million characters All compatible replacement cartridges are quality tested to ensure long-lasting use and bold, vivid print on every page. Please contact us first with any product issues. We want all of our customers to be happy because happiness matters.