This clothes hanger is made of a pulley system that consists of a fixed pulley seen at the top - attached to the ceiling and a movable pulley seen at the bottom that determines the height at which the clothes are hung.
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The fixed pulley is necessary as the person (standing below) exerts an effort (pulling string) that makes the load (clothes) go in the opposite direction.
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The movable pulley reduces effort used but the trade-off for less effort is that the effort must travel a longer distance than the load. - meaning you will have to pull the string for a longer distance than the distance that the clothes will move up.
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If you have one at home, try it out.
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