In the video, a man is seen installing a car seat in the back seat of a car. The car seat is black and has a five-point harness system. The man adjusts the straps and buckles to ensure a secure fit. He then demonstrates how to properly install the car seat by pushing it back and forth to check for stability. The car's interior is gray, and the man is wearing a gray shirt. The video is shot from the perspective of the back seat, providing a clear view of the installation process.