Mont Marte Water Brush Set Flat Signature 3PcMont Marte Water Brush Set Flat Signature 3Pc Our Water Brush Set allows you to create on the go with no need for water pots or extra brushes. It comes with three different brush sizes that feature a pressure sensitive barrel for an even flow of water while you work. Top up the refillable water brush pen with watercolours, inks, and water soluble paints these brushes make it easier than ever to create.