DURABrite Ultra Inks offer superior image quality with smudge-resistance, water-resistance and fade-resistance for durable prints and are ideal for double-sided printing. DURABrite Ultra inks do not bleed through. They are quick-drying for worry-free handling of photos and deliver incredible print quality for everyday text documents on plain paper and photo printing on glossy paper. Ink cartridges are designed for use with Epson WorkForce 60, 545, 630, 633, 635, 645, 840, 845, 3520, 3530, 3540, 7010, 7510, 7520; NX530 and NX625 printers. Each cartridge yields approximately 765 pages.