4x30ML Refill ink kit CMYK for HP 56/57 27/28 74/75 94/95 96/97 92/93 901XL 60XL One bottle 30ml(1.3oz) Black ink. One bottle 30ml(1.3oz) Cyan ink. One bottle 30ml(1.3oz) Magenta ink. One bottle 30ml(1.3oz) Yellow ink. Easy Step by Step refilling instruction.