Gigablock CIS Refill UV(Ultra Violet) Resistant ink Kit with 4 Colors for Epson Stylus C68 C88 Continuous Ink System (Related Cartridge # : T060120, T060220, T060320, T060420) CIS Refill UV(Ultra Violet) Resistant ink Kit with 4 Colors for Epson Stylus C68 C88 Continuous Ink System (Related Cartridge # : T060120, T060220, T060320, T060420) Comes with 490ml Ink (165ml BLACK Ink,125ml YELLOW Ink,100ml CYAN Ink,100ml MAGENTAInk) 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