4x30ml Premium Dye Ink for HP901 Black, HP901 Tri-color Cartridges. The package includes: (1) One bottle 30ml (1.3oz) Black ink. (2) One bottle 30ml (1.3oz) Cyan ink. (3) One bottle 30ml (1.3oz) Magenta ink. (4) One bottle 30ml (1.3oz) Yellow ink. (5) Step by step refill instruction. Each bottle ink can refill about 3-4 times for HP 901 Black cartridge, and can refill about 6-7 times for HP901 color cartridge. It is a big saving.... | ||||||||||||||||||||||||||||||||||||||||||||||||
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