QINK 4Pack(1-30ML Black, 1-30ML Cyan, 1-30ML Magenta, 1-30ML Yellow) Special Ink For 564 Refill Kit for 564 564XL Ink Cartridges Contents: 1 X 30 ml Special Black;1 X 30 ml Special Cyan;1 X 30 ml Special Magenta;1 X 30 ml Special Yellow Refill for: 564 Black CB316WN 564 Cyan CB318WN 564 Magenta CB319WN 564 Yellow CB320WN Inkjet Cartridge Premium Dye Ink Include a refill instruction. More feature: 1.High color saturation,high fidelity. 2.Ultrafiltration,no clogging caused. 3.Weak acid or alkalescent formula,no corrosion problems. 4.No bleeding,no smear,high print quality. 5.Quick dry formula,satisfaction at high speed printing. 6.Water base formula,no toxicity,no chemical hazards,no environment pollution 100% Satisfaction Guaranteed. We stand behind every product we sell and offer a 100% satisfaction guarantee for a full refund (excluding shipping costs) of the purchase price within 30 days. Defective cartridge can be exchanged within 90 days.