In the video, a person is seen using a wrench to tighten a bolt on a piece of machinery. The person's hands are visible, and they are wearing a black jacket. The machinery appears to be made of metal and has a greenish-gray color. The wrench is silver and has a red handle. The person is turning the wrench clockwise to tighten the bolt. There are other tools visible on the ground, including a screwdriver and a ratchet. The background is not clearly visible, but it appears to be an indoor setting with a concrete floor.