The Winsor and Newton Designers Promarker - Cool Grey 2 is an essential tool for any artist or designer. This marker is perfect for creating smooth, even lines and subtle shading. It is double-ended, with a broad chisel nib on one end and a fine bullet nib on the other, allowing for a variety of line widths. The ink is alcohol-based, giving it a vibrant, intense colour that won't fade over time. The ink is also non-toxic and odourless, making it safe to use. The marker is refillable, so you can keep using it for years to come. The Designers Promarker is ideal for sketching, illustration, and design work. It is also great for colouring in adult colouring books. With its long-lasting colour and versatile nibs, the Winsor and Newton Designers Promarker - Cool Grey 2 is an excellent choice for any artist or designer.