Designed so that the whole body of the rod bends flexibly, the rod jerks easily just by moving the wrist lightly. In addition, it is easy to grasp the timing of jerk and cast, establishing an intuitive “automatic” performance. Shimano's original basic structure Spiral-X is used for the blanks to achieve weight reduction while maintaining sufficient strength. In addition, by increasing the rigidity of twisting and crushing, it suppresses the dullness that tends to occur in supple rods. Carbon reinforced material CI4+ is used for the reel seat, contributing to further weight reduction and higher sensitivity.