In the video, a person is seen working on a bicycle. The person is using a tool to adjust the chain on the bicycle. The bicycle is placed on a stand, and the person is focused on the task at hand. The person's hands are visible, and they are using a tool to make adjustments to the chain. The video is shot in a well-lit area, and the person appears to be skilled in handling the tool and making adjustments to the bicycle. The bicycle is of a standard design, with a black frame and silver components. The person's movements are precise and deliberate, indicating that they are experienced in working on bicycles.