Old Master warmth à modern lightfastness. This finely pigmented water-based ink works well with a brush or dip pen. It's great for all kinds of drawing. In washes, it handles like a watercolor, with good layering and lifting capabilities. Its rich color resembles traditional walnut-based inks, but will not fade and, at 7.9 pH, is far less acidic. Packed in plastic bottles with leak-proof tops. Available in 2.6oz and 10oz bottles.