Noodler's Ink Refills Eternal Polar Blue Bottled Ink
Eternal Polar Blue resists the effects of time - moisture humidity UV light acids water exposure and many common detergents such as dish soaps and household ammonia as well as alcohols and acetone. It is a vibrant intense Royal blue designed for use in all fountain pens.
Polar Blue as with all Noodler's ink is water-based pH neutral and will easily wash off your pens. 3 oz. Ink Bottle