In the video, a person is seen putting a harness on a dog. The person is using their hands to adjust the straps of the harness, making sure it fits snugly around the dog's body. The harness appears to be made of a sturdy material, with a metal ring on the back for attaching a leash. The person's movements are careful and precise, indicating that they are experienced in handling dogs. The dog seems calm and cooperative throughout the process, suggesting that it is used to wearing a harness. The background is indistinct, but it appears to be an indoor setting. Overall, the video provides a detailed look at the process of fitting a harness on a dog, highlighting the importance of proper adjustment for comfort and safety.