by double2house, Non-OEM, (4 x 100ml) Bulk refill dye ink for Epson refillable cartridge WorkForce WF-2520 WF-2530 WF-2540 WF-3520 WF-3540 WF-7510 WF-7520 WF-7010 NX530 XP-200 XP-300 XP-310 XP-400 OPT Brand. Free shipping from New York. This ink is produced in dustless workshop & with third time filtration, particulate at size in 0.2. So the nozzle won't clog. This ink is Anti-UV dye ink, which can resist against sunshine so that printings can last longer in color. Stable performance without color fade. Lessens impact on landfills. 100% satisfaction guarantee Package includes: One Bottle 100ML Black Ink, One Bottle 100ML Cyan Ink, One Bottle 100ML Magenta Ink, One Bottle 100ML Yellow Ink, 1 syringe, and refill instruction.