The Winsor & Newton Designers Drawing Ink is a high-quality, professional-grade ink that is perfect for creating beautiful artwork. This ink is made from a blend of pigments and dyes, giving it a vibrant, intense colour that is lightfast and waterproof. The Viridian colour is a deep, rich green that is perfect for adding a touch of nature to your artwork. The 14ml bottle is easy to use and store, and the ink is suitable for use with a variety of drawing tools, including dip pens, brushes, and airbrushes.This ink is ideal for creating illustrations, drawings, and calligraphy. It is also suitable for use on a variety of surfaces, including paper, board, and canvas. The ink is easy to clean up with water, and it is non-toxic, making it safe for use by artists of all ages. The ink is also acid-free, meaning it won't fade or discolour over time.To use the Winsor & Newton Designers Drawing Ink, simply shake the bottle well before use and apply the ink to the desired surface. Allow the ink to dry before adding additional layers or colours. For best results, store the ink in a cool, dry place away from direct sunlight.The Winsor & Newton Designers Drawing Ink is a high-quality, professional-grade ink that is perfect for creating beautiful artwork. With its vibrant, intense colour and lightfast, waterproof properties, this ink is ideal for creating illustrations, drawings, and calligraphy. The 14ml bottle is easy to use and store, and the ink is non-toxic and acid-free, making it safe and long-lasting.