The Winsor & Newton Designers Calligraphy Ink is a high-quality, black ink that is perfect for creating beautiful calligraphy. This 30ml bottle of ink is made with a special formula that is designed to flow smoothly and evenly, allowing for precise and consistent results. The ink is also waterproof and fade-resistant, making it ideal for long-lasting projects. The ink is suitable for use with a variety of calligraphy pens, including dip pens, fountain pens, and brush pens. It is also suitable for use with airbrushes and technical pens. The ink is non-clogging and non-corrosive, making it safe to use on a variety of surfaces. It is also easy to clean up with soap and water. With its superior quality and performance, the Winsor & Newton Designers Calligraphy Ink is the perfect choice for creating beautiful calligraphy.