Gaugemaster PM-4 Seep Point Motor with Latching MechanismSeep Point Motors have the advantage of being easy to fix under the baseboard. requiring only a small slot to operate the point. The PM-4 is a self-latching point motor, ideal for use with hand-made points, and also includes a changeover switch for operating accessories or changing frog polarity. Drive rod 41mm long.Click Here to view the wiring instructions for this point motor.