The video shows a person's hands using a tool to tighten a bolt on a piece of machinery. The person's hands are visible in the frame, and they are using a wrench to turn the bolt. The machinery appears to be made of metal and has a black bolt that the person is tightening. The background is a wooden surface with visible scratches and marks. The person's hands are steady, and they seem to be experienced in using the tool. The lighting in the video is bright, and the colors are clear and distinct.