In the video, a person is seen working on a car's brake system. The person is wearing gloves and is using a tool to adjust the brake fluid reservoir. The person is seen unscrewing the cap and then screwing it back on. The person then adjusts the fluid level in the reservoir. The video provides a close-up view of the person's hands and the tool being used. The person's movements are deliberate and precise, indicating that they are experienced in working on car brake systems. The video does not provide any audio or additional context beyond the visual demonstration of the brake fluid adjustment process.