Over time, the brass develops a natural and individual patina. The high weight of the model already presses the writing instrument by itself on the paper. This allows longer writing. The rollerball pen makes it easy to write with exceptionally soft writing. Closed, the rollerball measures only 10.5 cm. With the cap turned over it grows to a normal size of 13 cm. Note: This raw material will discolour in the course of time through the use!