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 One of the few metallic elements with a natural color other than gray or silver. Naturally antimicrobial, copper will patina and darken with time and use.