This is compatible ink for EPSON printers. One box contains 7 cartridges (2 black, 1 yellow, 1 cyan, 1 light cyan, 1 magenta, 1 cyan magenta). I am selling these because I bought a new printer and no longer need them. One box has only 6 cartridges remaining as I used one yellow cartridge. This is a set of 13 cartridges and I am not selling them individually. Thank you.