The balance between flying and swimming required by Shinpen was rebuilt from scratch, including the bend curve, the ratio of body height and width, the face cut, weight placement, and eye position, and the fins were created on a body that simply brought together all the elements. Equipped with a keel. When reeling, when the tail swings left and right, water hits the face including the fin keel strongly, causing the head to flow left and right, creating a ``swing slalom action.'' The 28g Levin Heavy is focused on flight distance, and has achieved unrivaled flight even when you want to search a wide range in a vast area, or in situations where it is difficult to cast, such as in a headwind. The action, which minimizes floating, will continue to act without jumping out of the water, even during strong currents, rough weather, and high footing points.