This is a 6-color ink cartridge set (black, cyan, magenta, yellow, red, and gray) equivalent to the EPSON genuine ink cartridge "Yacht 6-color set (YTH-6CL)". These were mainly purchased individually. I had planned to use them, so I took them out of the outer boxes, but the inner bags are unopened. I discarded the outer boxes, so the expiration dates are unknown, but five colors (black, cyan, magenta, yellow, and red) were purchased at K's Denki in June of this year (2025), and the remaining one color (gray) was purchased on Amazon in April of last year. I have uploaded images of the purchase history, so please refer to them. Compatible models: EP-10VA, EP-30VA