In the video, a person is seen using a knife to cut through a piece of cardboard. The person's hand is visible, and they are using the knife to make a straight cut through the cardboard. The cardboard is a light brown color, and the knife has a silver blade with a black handle. The person's hand is steady as they cut through the cardboard, and the knife moves smoothly through the material. The background is not visible, and the focus is solely on the cutting action.