In the video, a person is seen demonstrating how to secure a child's car seat in a vehicle. The person is wearing a black shirt and blue jeans. The car seat is black with a colorful pattern on the side. The person starts by adjusting the straps and buckles of the seat to ensure it is securely fastened. They then proceed to adjust the headrest and back of the seat to fit the child's size. The person's movements are deliberate and careful, ensuring that the seat is properly installed. The video provides a clear and detailed view of the process, making it easy for viewers to follow along and understand how to secure their own child's car seat.