Made to the same high standard Caran d'Ache is famous for, perfect for use at home, the studio or in the field. With several sizes & bristle textures, this set provides the range of tools needed to explore a plethora of water-based techniques & mediums including ink, watercolour, graphite & many more! What is a waterbrush? Unlike a "standard" brush, waterbrushes include a reservoir (or container) inside the handle, preventing the need for separate water containers. To fill these, simply unscrew the top & bottom of the brush, essentially splitting it in half, fill with water & screw back together again. The strong watertight seal & included lid prevent any leaks when not in use. * On occasion waterbrushes are also known as "brush pens" or "reservoir brushes"