The video shows a person installing a muffler on a car. The person is using a wrench to tighten the bolts on the muffler. The muffler is silver in color and has a cylindrical shape. The person's hands are visible in the video, and they are wearing a white shirt. The background shows the underside of the car, with the tires and suspension visible. The video is shot in a well-lit area, and the person's actions are clear and precise.