Rotring Trio Pen Selling because I don't use it. No box included. The red ballpoint pen has no refill. Please insert a refill. Rotring was born in 1928 in Germany, during a time when the Bauhaus design school's aesthetics strongly influenced art and architecture. Based on the belief that "precise lines are beautiful" and the Bauhaus philosophy of "art in industry," Rotring has produced many minimalist yet high-performance products. Even as times change, the process of "thinking things through" – shaping ideas – remains constant for creators and engineers. When inspiration strikes, visualizing and expanding imagination infinitely. Rotring supports this process, continuing to assist professionals in their creative endeavors. The Trio Pen features three functions: a black and red ballpoint pen, and a 0.5mm mechanical pencil. It employs the "Pendulum Gravity System," which allows you to select the desired pen tip by aligning the icon on the body with the top and then clicking. The matte finish provides a simple yet striking design. Trio Pen, color: Silver