In the video, a person is seen holding a black dog's tail and washing it in a sink. The person's hands are visible, and they are wearing a ring on their left hand. The sink is white, and the faucet is silver. The dog's tail is black, and the person is using their right hand to hold the tail while the water runs from the faucet. The person appears to be washing the tail thoroughly, ensuring that all parts of the tail are cleaned.