HOTCOLOR Remanufactured 4-Slot 564 Printhead for 3521 3522 4610 4622 5512 5515 6510 6512 6515 6520 6525 B209a B210a B201e 1. 564 Print head compatibility For HP 3521 3522 4610 4622 5512 5515 6510 6512 6515 6520 6525 B209a B210a B201e Printer 2.What's in the box: 1 Pack 564 Printhead (4-Slot : Black, Cyan, Magenta, Yellow Without Photo Black !!!) 3.TIPS: Please confirm your Printer Model before placing order. / Click HOTCOLOR showed onSold by HOTCOLOR and Fulfilled by Amazon. Gift-wrap available. or Ships from and sold by HOTCOLOR.; and then click Ask a questionto contact us. 4.Type: Remanufactured Long-life printhead, easy installation and replacement, remanufactured by HOTCOLOR, ISO 9001 certified facility (Printing Effect is as original, printhead delivers professional-quality color documents) 5. Guarantee: 120 days quality warranty.If there is any problem,DO NOT hesitate to contact us.