Visconti conceived the Homo Sapiens collection for real writers, for those to whom the pen continues to represent a traveling mate, a daily friend to share with the same civilization that writing contributed to create. The material in this pen is as antique as the world: lava from the Etna volcano. Visconti lava is: Virtually unbreakable, it has a high degree of resilience. Flameproof, Visconti lava has a resistance to heat of over 100C. Slightly hygroscopic, allowing to absorb hand sweat during use. Visconti Homo Sapiens Lava Black Details: Lava has some incredible qualities making it the perfect material for writing instruments. Virtually unbreakable: high degree of resilience Flame-proof: heat resistance to heat over 100C Slightly hygroscopic: absorbs moisture during use Dense to the touch: comfortable to grip and relaxing to write with Inspiration was drawn from the Bronze Age for all metallic parts. The Bronze Age, almost contemporary to the invention of writing, marked the eve of human civilization. The clip, the rings and the metal accessories -with the exception of the piston only- are all in bronze: natural bronze like the antique formula, that does not require plating or protection treatments which alter its original almost pink color and which can be easily polished with special products. Available in fountain pen, oversize rollerball and ballpoint. Visconti Homo Sapiens Lava Bronze Age Oversize Rollerball Pen Specifications Body Material::Basaltic Lava from the Etna Volcano Trim and Clip:Bronze Filling Mechanism:A40 Refill Cap:Hook safe lock Length Closed: 5.7in (146mm) Length Posted: 6.7in (169mm) Length Uncapped: 5.2in (132mm) Diameter: 0.63 (16mm) Weight: 1.62oz (46g) Gift Boxed