Refill ink made by SANWA This is a set of 4 refillable ink cartridges (4 colors) for the 300-EMUGS4C universal ink cartridge ink set, which was included with the Epson MUG series (photo 3). Since they are unused, the cartridges have not been filled with ink and are empty. The product includes only the 4 empty cartridges. Refill ink is not included. Compatible printers are: Epson EW-052A, EW-452A. I purchased the 300-EMUGS4C, but I am selling only the empty cartridges because I don't need them. Will be shipped via Rakuraku Mercari Bin Nekopos.