The Winsor & Newton Designers Promarker is a high-quality marker that is perfect for any artist or designer. This marker features a fine tip that is ideal for detailed work, and the ink is fade-resistant and waterproof. The ink is also non-toxic, making it safe for use by children. The marker is available in a range of colors, including Sandstone, and is perfect for creating vibrant and unique designs.The Designers Promarker is easy to use and is ideal for a variety of applications, including sketching, illustration, and coloring. The marker is also great for use on paper, card, and other surfaces. The ink is quick-drying and won't smudge, making it perfect for use in a variety of environments. The marker is also refillable, so you can use it for a long time.The Winsor & Newton Designers Promarker is a great choice for any artist or designer. It is easy to use and provides vibrant, fade-resistant colors. The marker is also refillable, so you can use it for a long time. With its fine tip and waterproof ink, this marker is perfect for creating detailed and unique designs.