A high-density material jig that meets the need for a "heavy jig with a smaller silhouette" that is highly selective for baitfish and can handle super tough conditions. Even though there are blue fish like nabla and boil, they are too big to eat with conventional jigs, and on the other hand, small jigs can't reach the point. It exhibits explosive power in situations where the target selects and preys on extremely small baits. Made of tungsten, which has a specific gravity approximately 1.7 times that of lead, it has weight even though it is small, allowing stress-free long casts. While maintaining a realistic shape imitating a sardine, the left-right asymmetrical design allows the high-density body to act. It has a reliable swimming action during retrieval, and slides in a nearly horizontal position during fall, creating a weak bait.