This set includes four remanufactured toner cartridges for the HP 507X series, offering a cost-effective solution without compromising on quality. The set contains high-yield black (CE400X), cyan (CE401A), magenta (CE403A), and yellow (CE402A) cartridges, collectively delivering an impressive yield of up to 17,000 pages. Each cartridge is fully remanufactured, ensuring reliable performance with your HP printer. The use of these remanufactured cartridges does not void your printer warranty and is backed by a 2-year guarantee.