The video shows a person's hand holding a black bolt and screwing it into a metal object. The metal object has two holes, and the person screws the bolt into one of them. The person then unscrews the bolt and screws it into the other hole. The metal object is gray and appears to be made of steel or a similar material. The person's hand is visible in the video, and they are wearing a black glove. The background is a concrete floor.