In the video, a person is seen working on a car's brake system. The person is wearing black gloves and is using a tool to adjust the brake caliper. The brake caliper is located near the tire, and the person is using the tool to turn it. The person's actions suggest that they are either tightening or loosening the brake caliper. The video provides a close-up view of the brake system, allowing viewers to see the details of the brake caliper and the tool being used. The person's movements are deliberate and precise, indicating that they are experienced in working on car brakes. The video does not contain any audio, so the viewer can only rely on the visual information provided. Overall, the video provides a detailed look at the process of adjusting a car's brake caliper.