Sleek, intersecting metal facets create the chic pen cap and tip showing off the pen body you've created in wood or acrylic. The click pen uses a 3/8" drill bit with a one-piece click mechanism, while the rollerball and fountain pen versions offer a magnetic cap (think no more threads!) that posts on the back end of the pen. Architecturally, the Vertex is just plain cool! (Antique Brass finish)