Premium Compatibles by The Cartridge Centre are manufactured from the highest of quality parts ensuring this 4x Premium Compatible HP 124A Black Toner Cartridges (Q6000A) (4 Toners) produces the same quality and quantity of prints as the original equivalent. As a Premium Compatible customer you're also protected by the terms of our full 12 month Guarantee, meaning it's a totally no risk purchase at a substantial saving on the equivalent original product. Receive this 4x Premium Compatible HP 124A Black Toner Cartridges (Q6000A) (4 Toners) next working day with our next working day delivery service. Why choose 4x Premium Compatible HP 124A Black Toner Cartridges (Q6000A) (4 Toners) by The Cartridge Centre? Next Working Day Delivery Fully Guaranteed 100% Customer Satisfaction Will Not Invalidate Printer Warranty No Risk Purchase Same Quality Of Prints As Originals Same Quantity Of Prints As Originals Substantial Saving Contains: 4x Black - 2,500 pages This 4x Premium Compatible HP 124A Black Toner Cartridges (Q6000A) (4 Toners) is guaranteed to work in the following printers: HP Color LaserJet 1600 HP Color LaserJet 2600 HP Color LaserJet 2600N HP Color LaserJet 2605 HP Color LaserJet 2605DN HP Color LaserJet 2605DTN HP Color LaserJet CM1015 HP Color LaserJet CM1015 MFP HP Color LaserJet CM1017 HP Color LaserJet CM1017 MFP