The "Writer" designation means this pen has a clip. (The "Cigar" model is without clip.) The Kuro-tamenuri describes the "black red dark" which is deeper in value than the Aka-tamenuri, reddish red dark". Shown here is the Decapod Twist Cigar (Without Clip) fountain pen in Kuro-tamenuri (Black/Dark Red).

The ten sided shape has another function. Because it is not round in cross section it is not likely to roll off a desk. The yellow pencil evolved from a cylinder shape to be a faceted. The Decapod gives facets an entire new meaning. This profoundly deep red "breaks" at every edge, revealing the elegant from of this Nakaya fountain pen. At 5 7/8" capped and weighing 21.5 grams dry this pen is a pleasure to hold.

Although entirely hand made, these pens show a precision of craftsmanship rarely seen. You will notice that the facets line up between the cap and barrel in a precise manner when the cap is started in every other barrel thread.