The Winsor & Newton Designers Drawing Ink is a high-quality, professional-grade ink that is perfect for creating vibrant and long-lasting artwork. This 14ml bottle of Crimson ink is lightfast and waterproof, making it ideal for use in a variety of mediums, including watercolour, gouache, and acrylic. The ink is also suitable for use with dip pens, brushes, and airbrushes.The ink is made with a high concentration of pigment, ensuring that the colour is rich and vibrant. It is also acid-free, meaning that it won't fade or discolour over time. The ink is also non-clogging, so it won't clog up your pens or brushes. The bottle is designed with a convenient dropper cap, making it easy to dispense the ink in precise amounts.To use the ink, simply fill your pen or brush with the ink and start drawing. The ink can be used on a variety of surfaces, including paper, canvas, and wood. It is also suitable for use with a variety of mediums, including watercolour, gouache, and acrylic. When you're finished, simply clean your pen or brush with water.The Winsor & Newton Designers Drawing Ink is a great choice for professional artists and hobbyists alike. With its lightfast and waterproof properties, it is sure to create vibrant and long-lasting artwork.