In the video, a person is seen holding a wooden board with a metal plate attached to it. The person is using a small red knob to adjust the tension of the metal plate. The person then proceeds to place a piece of paper on the metal plate and uses the knob to adjust the tension further. The person then uses a small metal tool to make a mark on the paper. The person repeats this process several times, adjusting the tension and making marks on the paper. The person's hands are visible in the video, and they appear to be wearing a gray shirt. The background is a granite countertop.