In the video, a person is seen using a tool to tighten a bolt on a piece of machinery. The machinery is yellow in color and has a metal bolt that the person is working on. The person is using a tool to turn the bolt clockwise, indicating that they are tightening it. The tool appears to be a wrench or a similar type of hand tool. The person's hand is visible in the frame, and they are wearing a ring on their finger, suggesting that they may be married. The background is not clearly visible, but it seems to be an industrial or workshop setting.