Gigablock CIS Refill Kit with 4 Colors UV(Ultra Violet) Resistant Ink for Epson Stylus Photo CX5000 CX6000 CX7000 CX7400 CX7450 CX8400 CX9400 CX9475 and NX200 NX215 NX400 NX415 NX510 NX515 and WF600 WF610 Continuous Ink System (Related Cartridge # :T069120, T069220, T069320, T069420) CIS Refill Kit with 4 Colors UV(Ultra Violet) Resistant Ink for Epson Stylus Photo CX5000 CX6000 CX7000 CX7400 CX7450 CX8400 CX9400 CX9475 and NX200 NX215 NX400 NX415 NX510 NX515 and WF600 WF610 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