Delta Ballpoint Pen Limited Edition AMERIGO Vespucci R2 Black. Body material Natural wood, Kangerina, resin, sterling silver Mechanism Twist type Size Total length: approx. 142mm (when retracted) Total length: approx. 145mm (when writing) Diameter of barrel: approx.23mm (including the clip) Weight: approx. International Buyers - Please Note. Thank you for your understanding.