Coloring your artwork is easy with no-mess, dye-based Koi Coloring Brush Pens! Make fine, medium or bold brush strokes just by adjusting your pressure. Durable, flexible nylon brush tip easily springs back to its original shape, and odorless, water-based ink facilitates smooth blending and layering of colors.
Transparent ink colors blend easily, but you can create even more hues and effects with the KOI colorless blender. These brush pens also work beautifully with water brushes to create gradations and watercolor effects.