Boker Plus Redox Grey Titanium 5.13" Pocket Clip Pen P09BO032
5.13" overall. Pocket clip. Does not require a refill and works completely without graphite abrasion or ink. Instead it takes advantage of the rapid oxidation that occurs when the ethergraf tip comes into contact with paper. Once written down, it can neither be erased nor wiped away. Titanium body. Boxed.