In the video, a white cat is seen walking on a treadmill. The cat is being held by a person whose hands are visible in the frame. The treadmill is black and has a red stripe on the side. The cat appears to be calm and walking at a steady pace. The person's hands are gently holding the cat, ensuring its safety while it walks on the treadmill. The background is not clearly visible, but it appears to be an indoor setting.