[Good Compatibility] These replacement ink cartridges are widely compatible with -7720 -7710 -7620 -7610 -7210 -7110 -3620 -3640 Ink Cartridges. NOTE: Please confirm your printer ink type before purchasing.[Reusable Design] Our printer ink cartridges are equipped with automatic reset chip designed for continuous use, allowing the cartridges to be refilled and used for multiple times. You don't need to buy additional ink cartridges to save your money.[Fillable Capacity] 50ml for black ink cartridges, 20ml for per color ink . According to your needs, you can refill the printing ink cartridges with sublimation ink, pigment ink or dye ink.[Easy to Refill] The sublimation ink cartridges have perspective effect design, making you to see how much ink there is inside when adding ink. Easily refill ink full into with syringe and no other skills are required.Material:plastic colour:As shownPackage Contents:1 x black ink 1 x yellow ink 1 x cyan ink 1 x magenta ink Only the above package content, other products are not included.Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.