The Koi Coloring Brush Pen by Sakura is an ink pen with a brush tip that is ideal for painting, illustrating and sketching, for manga and comic art, as well as for stamping and coloring. It is water-soluble and has a very nice, intense and strong color application. The colors can be easily blended and diluted with water using a blender or a brush. You can also use the Koi Coloring Brush Pen to design cards, for scrapbooking or for stamping. The colors are ideally suited as stamping ink or to colorize waterproof stamped or embossed motifs. The Koi Coloring Brush Pens are also suitable for coloring the trendy zentangle books, as they are very color-intensive, but do not knock through the paper. The durable brush tip springs back and, depending on the pressure, makes fine, • Ink pen with brush tip • for painting, illustrating and sketching, for manga and comic art, as well as for stamping and coloring • water-soluble • odorless • intensive colors • many colors to choose from