An excellent metal jig that creates a "catchable" underwater posture. Focusing on the fact that many of the bites in metal jig games occur during the fall, we thoroughly studied the fall posture. After many prototypes, we succeeded in realizing a "fishable" underwater posture. On the other hand, it supports various actions and retrieve speeds such as one-pitch jerk, lift & fall, and high-speed winding without failing. In addition, by inheriting the reversible design that can change the action characteristics from the previous model, it can be adjusted to any condition.