In the video, a person is seen holding a dog's collar and adjusting it. The person's hand is visible, and they are using their fingers to make adjustments to the collar. The dog appears to be calm and cooperative during the process. The collar is black and appears to be made of a sturdy material. The person's movements are gentle and careful, ensuring that the collar fits the dog comfortably. The background is not clearly visible, but it seems to be an indoor setting.