The Sangaku is a very compact and light rod that can be stashed in any pack or bag . The rod has a strong 7:3 action which makes it capable for bigger species than you would think a small rod could handle. However it's compact size allows access to areas with dense vegetation and low hanging trees. A few quotes about the rod form the manufacturer.
Tenkara fishing that requires toughness and controllability in narrow and steep mountain streams
Designed to keep the casting width as low as possible and enable pinpoint hair casting. At the same time, we have finished the rod with power that does not leave the initiative to the fish.
The closing size is 1 ft. It is extremely portable and can be stored compactly in your bag."
3 sizes available 2.4 ,2.7 and 3.0 all 12.5 inches long with cap.