Collector's item: Limited to just 555 individually numbered pieces worldwide. The 555 collection echoes the art of triple refinement found in the world's finest spirits; a nod to the X.O's inspiration drawn from the culture of rare cognacs and refined craftsmanship. Body material: Green lacquered metal. It comes with a two-tone steel #6 JoWo nib. A standard international converter is included. Each fountain pen comes in a custom metal box with a handcrafted rigid leather case.