A zinc alloy with a light specific gravity and high hardness is used for the head material to produce a sharp action, and it reacts to rod work more quickly. In addition, the keel part, which is the key to stability, is designed exclusively for the light model. At the time of horizontal slide, which is the key to tip plan, the tail is slightly raised to invite squid. It shows its true value in shallow water or when the wind is weak and the flow of the ship is gentle, expanding the stage of tip plan egging.