We absolutely love when this mini golf obstacle is selected for one of our rental courses. Providing another option from the traditional Railroad Crossing which has a slow rotating gate and flashing lights, the metal Railroad Crossing does not offer a rotating gate but a putt through hole. When the putt does go through the hole, the lights blink and standard railroad crossing chimes & sounds are played. The putt through opening is 5 inches wide and 5 inches tall. The diameter of a golf ball is 1.68 inches so it should be easy putt. However, if an event guest does not line up the putt accurately, their putt will hit the metal and come to a dead stop. The width of this obstacle is 32 inches so it can be selected on our traditional 3, 6, 9 & 18 hole mini golf rental courses. It is electric but is powered with a battery so a source of available power is not required.