The pens have a pleasant feel, can be run well and write very smoothly. Also, the overhead writing is no problem, but the most practical is the fact that they also work in the freezing cold and still write great on sopping-wet paper.
An absolute buy recommendation for anyone who has to write out and in all weather conditions somewhat.
So a writer should everyone have in the car, such as for a personal exchange after an accident, especially when it is raining or cold ...