In the video, we see a person's hands using a knife to chop an onion on a wooden cutting board. The onion is cut into small pieces, and the person's hands are visible as they move the onion around and continue to chop it. The cutting board is light brown, and the onion is white. The knife is silver and appears to be a chef's knife. The person's hands are steady as they chop the onion, and they seem to be experienced in using the knife.