Noodler's Ink Refills Polar Blue 4.5oz w/ Free Fountain Pen Bottled Ink - ND-19805
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. This listing is for a 4.5 oz. eyedropper glass bottle of Noodlers ink in Polar Blue. Pen is a clear plastic so ink supply is visible.