4 X 500ml Dye Refill Ink for Brother INKvestment Ink Bottle PrintersND High Quality Dye Refill Inks for Brother INKvestment Series BTD100 Ink Bottles for DCP T530DW DCP T535DW DCP T536DW DCP T730DW DCP T735DW DCP T830DW DCP T835DW MFC T930DW MFC T935DW; BTD180 Ink Bottles for MFC T580DW MFC T780DW MFC T980DW All In One inkjet printers This item includes: 500ml Black Dye refill ink 500ml Cyan Dye refill ink 500ml Magenta Dye refill ink 500ml Yellow Dye refill ink This UV dye ink is resist against daylight and ozone in