The Arrow bamboo (Pseudosasa japonica) belongs to Poaceae (the Grass family). It is a bamboo that is distributed from Honshu to Shikoku and Kyushu in Japan. The rod extends straight and is about 3 to 5 m high. The cross section of the rod is circular, the internodes are long, and there is only one branch from each node. Also, the skin covers most of the surface of the rod. It has been cultivated as a material for arrow shafts since ancient times. It is still used for arrows, brush shafts, fishing rods, etc.