Leuchtturm Drehgriffel Gel Pen is inspired by an original 1920 design. The hexagonal barrel is precision milled in aluminum and brass, then varnished. It has a spring-loaded twist mechanism that allows you to rotate the pen barrel to extend or retract the pen tip. Made in Germany.
The ceramic ball bearing provides a .5mm line. The pens are compatible with a Parker-style international refill, and additional refills are available here.
The award winning pen design is available in 7 colors: