The Drehgriffel ballpoint pen by Leuchtturm1917 is made from precision-milled aluminium and brass. It's the perfect everyday pen, and comes with blue ink with a medium 0.7mm point.
It contains a spring-loaded twist mechanism. To change the refill, simply unscrew the twist head.
Black ballpoint ink refills (set of 2) are available in this listing!
One ballpoint pen
Medium point - 0.7mm