The video shows a person's hand holding a knife and using it to cut through a piece of cardboard. The knife is sharp and moves smoothly through the cardboard, leaving a clean cut. The person's hand is steady, and they seem to be experienced in using the knife. The cardboard is a standard brown color, and the knife has a black handle with a silver blade. The background is a wooden surface, and there is no other object or person visible in the video.