This Aqua Brush Pen from Pentel is a refillable and versatile brush capable of a range of techniques. You fill the chamber with water to help blend colours together or alternatively you can pair it with coloured inks and other water soluble mediums to create beautiful watercolour effects in your work without all the hassle. The pen features a flexible broad nylon tip perfect for detailed work and great at absorbing and holding your ink for much longer strokes before running dry. This brush has a capacity to hold 10ml of water so it will last a long time before needing to be refilled. In this range the pen is available in three different tip sizes, fine, medium and broad. - Brand: Pentel - Refillable with water to create watercolour finishes - Flexible broad nylon tip - Great at absorbing and holding ink for longer strokes - 10ml capacity