Meet your new Side Click Elegant and simple. The all-metal Side Click is incredibly satisfying in both feel and sound. We designed a completely new, two-piece mechanism that\’s durable enough to withstand a lifetime of use. Fair warning… this is an extremely addicting pen. All-metal, unique click mechanism Three lengths: Standard, Short, Mini Available in Titanium, Copper, Bronze, and Zirconium Updated, deeper carry milled clip periodic table with similar corrosion resistance. Zirconium is difficult to machine and one of the most expensive materials we work with but lustrous, dark grey color looks amazing.