Of all our series, the Dia2 series undergoes the most complex manufacturing process. The traces of the Kaweco DIA go back to 1921. There have been various variants since then. At that time, the writing systems fountain pen, twist-, push- and multi-coloured pencils were made of black ebonite and high-grade coloured celluloid. Today, the series is made of high-quality acrylic and is finally hand polished. It is available as a fountain pen, roller ball, twist ball pen, twist pencil and multifunctional pen.