The Pentel Colour Brush Pen is designed for anyone who wants bold, vibrant colors on paper. It uses strong, water-based ink that works great for wet-on-wet techniques, lettering, layouts, and illustrations, letting you layer and blend colors just like with traditional watercolor.The pen has a soft nylon brush tip that mimics a real paintbrush, so you can go from thin lines to broad strokes simply by adjusting your pressure. Press lightly to increase the ink flow and let the brush tip do the work, giving you full control over shading, gradients, and expressive strokes.