The strongest material (SUS steel panel) is cut into a shape and penetrates the body. "Breakage/deformation due to impact on water or near the shore" is definitely reduced. The high adhesion hologram is highly durable and has practical functions that can withstand abuse from shore. The pointed head and side edges promote straight-line inertia and reduce drag. In addition, the flashing that comes from sharp dirt rolling has a high appeal. It has an excellent flight posture and the feeling of flying is truly exhilarating.