Staedtler Marsgraphic Duo 36pk 2-end Watercolour Brush pens

Staedtler Mars-Graphic Duo Watercolour Markers have a fine point tip on one end and a brush tip on the other.  They are available in an 18 pack or 36 pack and are great for brush calligraphy and watercolour marker techniques.  Each set has a good selection of colours.