BRASS SPORTS Around 1550, brass was used for casting for the first time, resulting in a wide range of possible applications. However, at the beginning of the industrial age, writing implements were mainly made of hard rubber (ebonite). Brass, on the other hand, was only used for decorative parts such as clips or decorative rings. With the invention of ink cartridges, brass could also be used in the manufacture of writing implements because the ink no longer came into contact with the metal. The brass of the Kaweco Brass Sport develops a natural and unique patina over time. The user-related application causes a change in the surface, which can be traced back to chemical and corrosive influences. In this way, every Kaweco Brass Sport becomes unique over the course of use. Due to the high weight of the model, the writing instrument already presses lightly on the paper by itself. This way you can write long and comfortably. The heavy model of the Sport series made of high-quality brass with an individual touch This pocket fountain pen is only 10.5 cm tall when closed and grows to a normal size of 13 cm with the cap on. The high-quality brass develops a natural, individual patina over time. Due to the high weight of the model, the writing instrument already presses lightly on the paper by itself. This makes it possible for you to write particularly long and comfortably.