In the video, a person is seen using a wrench to tighten a bolt on a piece of machinery. The person is wearing a blue shirt and is standing in front of a wooden bench. The machinery appears to be made of metal and has several bolts and nuts. The person is focused on the task at hand, using the wrench with precision to ensure that the bolt is tightened properly. The lighting in the room is dim, and there are no other people visible in the video. The person's movements are deliberate and careful, indicating that they are experienced in this type of work.