OPT Brand. 5 X 100ML UV Resistant Dye Refill Bulk Ink For Epson T273 XL T273XL Expression XP-820 XP-810 XP-800 XP-520 XP-600 XP-620 XP-610 Printers CISS CIS and refillable ink cartridge. OPT Brand. Free shipping from New York. For refillable ink cartridges and CISS CIS system. Fast filling without spilling. ISO9001 quality and production certificate. Excellent print effect, as good as originals. Stable performance without color fade. Lessens impact on landfills. 100% satisfaction guarantee. Package includes: Two Bottles 100ML Black Ink, One Bottle 100ML Cyan Ink, One Bottle 100ML Magenta Ink, One Bottle 100ML Yellow Ink, 1 syringe, and refill instruction.