Size: Length - 5 1/2 inches capped; 6 1/8 inches posted.
Of all the Hero designs that were based on the Parker 51, the 616 is the closest in appearance to that pen. At first glance, it is just about identical. The cap has a conical steel "jewel", and an arrow design pocket clip that is all but a direct copy of the Parker clip. The steel cap is polished. The imprint is around the lip of the cap. The barrel unscrews to reveal an Aerometric style filling system. There is a transparent window between the barrel and the hood, through wich you can see how much ink you have remaining. The nib is made from a steel alloy with an iridium point. The nib would be a fine point, but Hero nibs always come up on the narrow side, so I would say this was an extra-fine point.