Gigablock Continuous Ink System: Refillable Cartridge for Brother printers that are used in LC71 LC75 LC79 Cartridge Inks made in USA Fits all Brother printers using LC71 LC75 LC79 cartridges Related Printer: Brother MFC-J280W, J430W, J5910DW, J625DW, J6510DW, J6710DW, J6910DW, J825DW 12-15 times more ink volume than OEM cartridges Quck and easy installation. (Easy instruction is included)