Rembrandt, Leonardo Da Vinci and Vincent Van Gogh are just a few of the artists that have used walnut ink in their drawings! With Tom Norton's Walnut Drawing Ink� you will experience the rich walnut colour and superior rendering capabilities loved by the world's most famous artists. Made with artist grade pigments. Lightfast and acid-free. Rich, intense walnut colour. Dries to warm brown, sepia tones. Water-soluble ink, acts like a watercolour. Layer to darken tones or add water to lighten them. Recommended for use with brush and nibs. Excellent for calligraphy, drawing and painting. This product is not made with walnuts, it is made with artist grade pigments and is designed to emulate the colour of walnut ink.