In the video, a person is seen using a green mushroom slicer to slice mushrooms. The slicer is placed on a black countertop, and the person is holding it with one hand while slicing the mushrooms with the other. The mushrooms are being sliced into thin strips and falling into a clear plastic container. The person then removes the sliced mushrooms from the container and places them into a cardboard box. The video is shot from a close-up angle, focusing on the person's hands and the slicer.