Extra high-capacity, ink cartridge is designed for use with Epson Stylus NX515 All-in-One Printer, WorkForce 600 All-in-One Printer, WorkForce 610 All-in-One Printer, WorkForce 615 and WorkForce 40 Inkjet Printer. DuraBrite Ultra Inks offer superior image quality with smudge-resistance, water-resistance and fade-resistance for durable prints. Ideal for double-sided printing. DuraBrite Ultra inks do not bleed through. Ink is quick-drying for worry-free handling of photos. Patented SmartValve Cartridge technology has MicroPiezo Ink Level Sensors. Ink cartridge yields approximately 835 pages.