ROTARY SYSTEM FOR SUBMERGED PUMPS. In this way, the cyclist can adjust the size of a safety signal strip quickly, comfortably and safely using just one hand when heshe is being overtaken by another vehicle, thereby preventing the cyclist from being hit owing to the incompetency or carelessness of the driver of the overtaking vehicle. The second sub-radiating member and the third sub-radiating member are extended in the same upright direction above the ground plane.