As a product expert in the art industry, I highly recommend the Tombow ABT Brush Pen 098 Dual Tip. With its dual tip feature, this pen allows for both fine and bold strokes, providing versatility and precision in your artwork. Its water-based ink is also blendable, making it perfect for creating gradients and shading. The flexible brush tip easily conforms to your hand movements, while the hard tip is perfect for outlining and detailing. With its high-quality construction and reliable ink flow, this pen is a must-have for any artist looking to elevate their work. Try it out and see the difference in your creations.