This multi-function Rotring pen provides high-precision writing, making it popular with professional designers and drafters. The pen combines black, red, and blue ballpoint pens with a 0.5 mm mechanical pencil, which gives the pen a comfortable weight and sense of stability. The pen body is slim enough for the pen to fit into the Hobonichi Techo cover’s pen holders.

You can choose the pen tip by facing the icon of your choice upward and pressing the button, as gravity does all the work. The pen’s clip acts as the button to retract the pen tip.

The Rotring Four-in-One was once a retired product, but eager fans helped bring this popular product back into production.