german flamingo RB, a brass cock tip pen with gold stripes on a black background, is an advanced iridium pen.

Pen is a widely used writing tool, which was invented in the early 19th century and designed by American Walt Man. The pen is made of metal, and it is smooth and elastic to write, which is quite smooth. At the mouth of the pen cap or the surface of the pen tip, there are obvious trademark numbers and models.