Ink refill set for CIS/CISS or refillable cartridges using Epson 68, 69 ink: Workforce 40, 310, 500, 600, 610 & NX100, NX115, NX200, NX215, NX400, NX415, NX515 Ink made in USA Highest UV resistant rating on market Fills directly w/ our spout tip bottle(no syringes needed) Total of 480ml.(120ml per bottle) 4 colors 4 bottles/ set, Black, Cyan, Magenta, Yellow