The video shows a person's hand holding a white circular piece of paper with black lines drawn on it. The person is using a black ruler to measure the paper. The paper is placed on a wooden surface, and the person's hand is visible throughout the video. The black lines on the paper appear to be drawn with a pen or marker. The ruler is used to measure the length of the lines and the diameter of the circle. The person's hand moves the paper around to get different measurements.