Achieve artist-brush style strokes and coloring with the blendable and flexible Sakura® Koi® brush pens. Change the amount of pressure on the flexible nylon nibs of these coloring brush pens to make fine, medium, or bold strokes on your paintings. For your convenience, the durable tip springs back to its original position. Its odorless and water-based solvent ensures smooth blending and layering of colors. Add vibrant colors to your sketches, journals, art pads, and rubber stamps with these brush pens. This brush pen set consists of 12 pens of different colors.