The video shows a person installing a child safety lock on a door. The person attaches the lock to the door and then demonstrates how it works by opening and closing the door with the lock in place. The lock appears to be a simple, easy-to-use device that can be attached to the door without the need for tools. The person's hands are visible in the video, and they seem to be demonstrating the lock's functionality. The door is white, and the lock is black and white. The video is shot in a well-lit room, and the person's actions are clear and easy to follow.