The fallen lines outline the smooth posture and speed of the dolphins in the deep sea. The aluminum alloy polished pen cover achieves a visually perfect texture. External design and internal mechanism perfect SACA gives the characteristics of amphibians, cross-field abilities, mastery of the exclusive design of anti-ink ink snake pens and the use of the German classic refill brand Schmidt's steel ball pen to control the taste of people. Classic rhombic. X-woven carbon fiber, exclusive X-woven carbon fiber with streamlined design body, accurate classic, light and strong. Only you are unique. Exclusive imprint SACA offers name or initials engraving services to customize the imprint you want on unique styles. Give you a unique gift. (If you need a customized name service, please note in the remarks column of the order, there will be someone to serve you) Material | carbon fiber pen body, aluminum alloy pen cover.