The Winsor & Newton Designers Drawing Ink is a high-quality, professional-grade ink that is perfect for creating detailed drawings and illustrations. This 14ml bottle of silver ink is lightfast and waterproof, making it ideal for use on a variety of surfaces. The ink is also non-clogging, so it won't dry out in the nib of your pen or brush. The ink is also fade-resistant, so your artwork will remain vibrant and beautiful for years to come. This ink is suitable for use with dip pens, brushes, airbrushes, and technical pens. It can be used on paper, board, and other surfaces. To use, simply dip your pen or brush into the ink and apply to the surface. The ink can be thinned with water for a lighter effect, or mixed with other colors to create unique shades. The Winsor & Newton Designers Drawing Ink is a great choice for professional artists and illustrators who want to create beautiful, long-lasting artwork. It is also a great choice for beginners who want to explore the world of drawing and illustration. With its lightfast and waterproof properties, this ink is sure to become a favorite in your art supplies.