The present invention is to provide an electric junction box which can minimize a case by reducing the capacity of a cover without damage of electric wires. The heat transfer circuit preferably takes the form of a closed loop heat-pipe system. The single contact point is aligned with the lure’s center of balance, such that when the lure rests on the bottom surface it has a tendency to remain balanced on the single contact point. The U-shaped fulcrum supports thereon an elastic cord with an attached leg pin connector. Also disclosed are pharmaceutical compositions containing one of the compounds described above.