The Winsor & Newton Designers Promarker is a professional-grade marker that is perfect for any artist or designer. This marker features a unique blend of alcohol-based ink and a fine nib, allowing for precise and vibrant colouring. The ink is also lightfast, meaning that it won't fade over time. The marker is double-ended, with a broad chisel nib on one end and a fine bullet nib on the other, giving you the flexibility to create a variety of effects. The ink is also water-resistant, making it ideal for use on a variety of surfaces. The marker is easy to use and refillable, making it a great choice for any artist or designer. With its vibrant colours and versatile nibs, the Winsor & Newton Designers Promarker is the perfect tool for creating beautiful artwork.