Amsterdam Acrylic inks are versatile fluid acrylic inks, and in our own testing one of the top acrylic inks available. All colors are highly pigmented and extremely lightfast. The ink is based on an acrylic resin and is waterproof when dry. Ideal for a wide range of techniques like calligraphy, watercolor, airbrush and can be used with dip or technical pens. This set of six 1 ounce jars includes titanium white, primary yellow, primary magenta, primary cyan, yellow ochre and oxide black.