Nakaya Naka-ai Writer Ballpen Shobu ChromeLike all Nakaya Urushi pens, each Naka ai Writer Ballpen is made of hand turned ebonite hard rubber, then sent to the Wajima region in western Japan for finishing. This version in Shobu is finished in deep purple urushi lacquer with cool chrome trim. Any Nakaya ebonite hard rubber pen (this includes all Nakaya pens with the exception of the Celluloid, Briarwood, Carbon Graphite, and Titanium models) is also available as a special order item in a