The fall speed and lightness of pulling resistance that can be continued sharply. Appeal power that can attract targets even if the range is slightly different. An action that makes the target use his mouth. This "Tonbo (dragonfly} Jig" was developed with the aim of creating a so-called all-purpose type metal jig that meets these factors in a well-balanced manner. What is the shape that can handle high levels, whether it is a high-pitch shakuri aiming for one that will be the key to continuous hits, a fall for aiming for a follow-up chain, or a slow-pitch shakuri aiming for an efficient range? As a result of searching for that, the current shape was reached. Here is the answer to the "wide range of applications" that is required because the weight of each jig is an obstacle to preparing various types of jigs according to the situation.