Gigablock 4 color Refill Ink Bottle Set - 4 x 100ml for CIS/CISS or refillable cartridges using Epson Stylus Photo CX7400 CX8400 CX5000 NX400 (Related Cartridge # :T069120, T069220, T069320, T069420) CIS Refill Kit with 4 Colors UV(Ultra Violet) Resistant Ink for Epson Stylus Photo CX7400 CX8400 CX5000 NX200 NX215 NX400 NX415 Continuous Ink System (Related Cartridge # :T069120, T069220, T069320, T069420) Comes with 400ml Ink (100ml BLACK Ink,100ml YELLOW Ink,100ml CYAN Ink,100ml MAGENTA Ink) Equivalent to 8 ~ 9 cartridges per color; Thats a total of about 40 ~ 45 cartridge yields all in this 1 refill kit Perfect buy for high volume printers, this represents over 200% savings compared to buying new OEM cartridges The ink in this refill kit is UV(Ultra Violet) resistant Dye based and matches the OEM quality in both quality and page yield