Reference: AST
Shuttle Art 6 Set Watercolor Brush Pens - S,M,L
Water Brush Pens for Watercolor Painting, Calligraphy, Water Soluble Pencil, Brush Pens, Markers They are self-moistening and easy to clean with water. EASY TO CONTROL---Add water into hollow tube and you can monitor water level through transparent barrel. Gently press the tube, to humidify the brush tip or to control the water flow. VERSATILE WATER...