KOI WATERBRUSH 9ML TANK MED #6-MED #6

Traveling watercolorists will wonder how they lived without the Koi Waterbrush. Its self-contained reservoir – clear to show when it needs a refill – feeds water to the nylon brush tip. The brush is collapsible and is available in three sizes: small (#2 round), medium (#6 round) and large (#8 round). The brushes are available with 4ml or 9ml reservoirs.