Smooth lines and a streamlined body comprise the Diplomat Aero Green ballpoint pen. Feel the legacy of the Zeppelin and give height to your narratives. Featuring full aluminum casing, anodized surfaces, and grooves on the barrel and cap. This is the perfect luxury gift for treating yourself or a loved one. The twist-action retraction mechanism is smooth as silk. Refill with Monteverde Parker Style ballpoint or gel refills.