1) Unscrew, fill with water and start drawing! 2) Perfect in combination with watercolour pencils as well as water soluble colours 3) Suitable for wet-on-wet, glazing and dry-brushing techniques (granulation) 4) Ideal for on the move (urban sketching) 5) Cap can be used for scratching and scraping techniques (so-called credit card technique) 6) By application of gentle pressure on the brush barrel, water will run down to the tip 7) Water tank with a capacity of 6 ml 8) Brush hairs made from high-quality synthetic thread 9) Brush size: Medium