Gigablock Non OEM Pigment Black Inkjet cartridge Refill Kit for HP 364 564 178 862 364XL 564XL 178XL 862XL Cartridges Type: Premium Quality & Easy Refill kit Product: 4~8 refills (20ml x 2), 2 Years Shelf life for two black ink includes: syringe+ needles & cartridge holder for ink refill injecting process. manual: easily understandable instruction manual on how to refill cartridge