The video shows a person cutting an onion on a wooden cutting board. The person uses a knife to chop the onion into small pieces. The onion is white and round, and the knife has a silver blade and a black handle. The person's hands are visible as they hold the onion and knife. The cutting board is brown and has a smooth surface. The video is shot from a top-down angle, and the lighting is bright, making the colors of the onion, knife, and cutting board stand out.