In this video, a person is seen demonstrating how to attach a phone holder to a car's dashboard. The person starts by holding the phone holder in their hand and then proceeds to attach it to the dashboard. They then place a phone on the holder and adjust it to ensure it is securely in place. The person then demonstrates how the phone holder can be used to charge the phone by plugging it into the car's USB port. Throughout the video, the person's actions are clear and easy to follow, making it simple for viewers to understand how to use the phone holder in their own car.