In the video, we see a person's hand holding a mushroom steady on a white cutting board. The person is using a large knife to slice the mushroom into thin pieces. The mushroom is brown in color and appears to be of a medium size. The knife is silver and has a sharp edge, which makes it easy for the person to cut through the mushroom with ease. The person's hand is steady, and they seem to be experienced in using the knife. The background is a plain white surface, which provides a clear view of the cutting process.