fantasyBuy Bulk Continuous Ink System (CIS) for Refillable ink cartridges/ink reservoirs enable countless refills. Pre-filled with 145ml x 1 color (Black : Pigment based ink) and 70ml x 3 colors (Dye based ink) = 355 ml of premium ink Quick and Easy installation. You will be printing in minutes. 80% Saving on individual Inkjet Cartridge. Auto-reset chipsets reset the cartridges so there is no need to utilize a chip resetter nor take the cartridges out of the printer