Nakaya Decapod Writer Heki-tamenuri STThe earthtones of the Decapod Heki Tamenuri reveal this remarkable ten sided shape. The edges and planes show so much difference between the deep earth brown and the vibrant green under color that the design of the pen leaps forward. The Nakaya Decapod Writer Heki tamenuri fountain pen shows brown green on each of the ten facets. The Writer model has a clip, and shows off the streamlined shape of the Decapod with its crisp edges. Uniquely well suited