In the video, a person is shown using a wrench to tighten a bolt on a piece of machinery. The person is wearing black gloves and is working underneath the machinery. The machinery appears to be made of metal and has several bolts and pipes. The person is focused on the task at hand and is using the wrench with precision to ensure that the bolt is tightened properly. The background is not clearly visible, but it appears to be an industrial setting. The person's movements are deliberate and careful, indicating that they are experienced in this type of work. Overall, the video provides a glimpse into the world of machinery maintenance and the importance of attention to detail in ensuring that equipment functions properly.