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Many times in our daily life, such things come in front of us which look normal but people do not know much about them. However, when the truth of these things comes out, people get surprised. One such case is of these sticks (Marker Poles) installed in front of trucks. Many people think that these are installed only for decoration, because they are seen moving while driving. But in reality, their use is related to safety, about which most people are unaware.