Pen utilizes a patented silver-based technology that provides built-in protection by naturally and continuously resisting the growth of microbes on the pen. Pen features ergonomic, tapered design for writing use, metal tip to prevent cracking, and metal band in center for easy disassembly during refills. Swivel socket and pen holder are constructed of chrome-plated metal for the look and feel of expensive pen sets and the strength to withstand daily abuse. Hard rubber base won’t crack or break and is backed with double-coated adhesive to provide a strong bond to counters. Ball chain extends to length of 26 inches for maximum desk coverage. Chain-Riter pen uses standard refill (sold separately).