The design of the body is smooth and creates low water resistance making it easy for the bait to dart side-to-side. It can be fished quickly to generate reaction bites. The salt content varies based on the size of the bait (8inch = 5%, 6inch / 5inch = 10%, 4inch = 5%) and the material has strength and holds hooks securely, which reduces tearing and breaking. The body has a hook slot to make sure it is rigged straight. The keel is the secret for the unique jumping dirt action of Sakamata Shad. It allows the water to flow and creates a unique jumping action. It also acts as a rudder to create better darting action.