The Winsor & Newton Designers Calligraphy Ink is a high-quality, water-based ink that is perfect for creating beautiful calligraphy. This dark blue ink comes in a 30ml bottle and is suitable for use with dip pens, brushes, and airbrushes. It is lightfast and waterproof, so your artwork will remain vibrant and long-lasting. The ink is also non-clogging, so it won't clog up your pen or brush. It is also easy to clean up with just soap and water.This ink is perfect for creating stunning calligraphy pieces, from invitations and greeting cards to artwork and posters. It is also great for adding a unique touch to your writing projects. The ink is easy to use and can be used on a variety of surfaces, including paper, card, and canvas. It is also suitable for use with a variety of pens and brushes, so you can create a variety of effects.The Winsor & Newton Designers Calligraphy Ink is a great choice for anyone looking to create beautiful calligraphy pieces. It is easy to use and provides excellent results. With its lightfast and waterproof properties, your artwork will remain vibrant and long-lasting.