In the video, a person is seen demonstrating how to adjust the straps of a seat belt. The person's hands are visible, and they are using their fingers to adjust the straps. The seat belt appears to be black in color and is attached to a metal buckle. The person's movements are deliberate and precise, indicating that they are familiar with the process of adjusting seat belts. The background is not visible, focusing the viewer's attention solely on the demonstration.