In the entry price segment around 35 euros there are already established competitors like Pelikan, Lamy, Kaweco and Online, so a clear differentiation via target group, marketing and added value is decisive. Other Chinese brands like Duke find it hard going on the German market. The names TWSBI and DIAMOND are criticised as not very catchy for the target group of pupils and students. Full disassemblability for cleaning and maintenance is hardly relevant for end customers and carries the risk that laymen cause damage; for dealers, however, it can be of interest for spare-parts stocking. As added value, individualisation via interchangeable modules such as grip segments, writing modules with various line widths or gold nibs presents itself. A grey demonstrator would be desirable as a visual highlight.