The transparent ink colors can be easily mixed together, allowing for a wide range of colors, shades, and effects. Use the colorless blender to achieve seamless color transitions. Alternatively, simply press the tip of a Koi marker against the tip of another brush pen, letting the ink flow from one tip to the other, and the line will subtly change color. The Sakura Koi watercolor brush with a flexible brush tip is perfect for sketches, magazines, cartoons, illustrations, stamping, and much more. The odorless dye-based ink blends easily. The flexible and durable nylon tip works just like an artist brush, bending back to its original shape line by line. The tip produces fine, medium, and thick lines by simply varying the pressure applied to it. Ideal for handwriting, bullet journaling, and advanced coloring. Contents: 31, 29, 226, 27, 130, 47.