ND Brand Dinsink: 6 Pint 6x500ml refill ink for Epson 79 T079: Stylus 1400 1410 Artisan 1430 Printer High quality refill ink Particles: &lt;0.5 micron (Average&lt;100 nanometer); Stability: No settling in 3 years (at normal storage); Lightfastness: 5-86BWS; Waterfastness: 5 (Excellent); Gasfastness: 5 (Excellent).