The dual-sided surface gives a fine grain face for charcoal

That flexibility is what lets you move from a fine line into a wide brush stroke within a single continuous motion — useful for lettering or illustration work where you don't want to stop and switch pens mid-stroke

Flow: Internal circulation system prevents tip drying and clogging

Coloration: Mass-dyed black — acid-free

van gogh watercolour brush series 191 size 10 Jake The dual-sided surface gives aWatercolor brush with synthetic brush hairs that absorb both paint and water well. Van Gogh's watercolor brushes are handmade and have a high quality for their price level. Round brush in size 10 (6. 6 mm). Van Gogh's watercolor brushes are available in several different sizes and designs, you can find our entire selection of brushes here.