Perfect in combination with watercolor pencils as well as water-soluble colors. The water brush is ideal for wet-on-wet, glazing and dry-brushing techniques. Practical for mobile use, when you are on the go. Cap can be used for scratching and scraping techniques. By application of gentle pressure on the brush barrel, water will run down to the tip. The water tank has a capacity of 6 ml. The brush hairs are made from high-quality synthetic thread.