The Stabilo Pen 68 is a high-quality felt-tip pen designed for the best results. Available in 65 beautiful, vibrant colors, including 6 fluorescent shades. Whether you are a professional or a hobbyist, this top felt-tip pen is perfect for you. It is water-mixable for stunning watercolor effects and color gradients. The Stabilo Pen 68 felt-tip pens are of the highest quality and offer endless color possibilities. The tip is 1 mm thick for bold lines and filling in areas. The sturdy tip ensures a consistent ink flow. The pen can be capped for 24 hours without the tip drying out. The colors are intense and highly opaque. When used with water, it is advisable to use thicker paper or cardboard. All colors are mixable with each other, allowing you to create any desired shade. By evenly rubbing large areas with a damp cotton swab, beautiful, smooth color transitions can be achieved.