In the video, a person is seen cleaning a black tray with a green sponge. The tray appears to be made of plastic and has a rectangular shape. The person is using a back-and-forth motion to scrub the surface of the tray, focusing on one area at a time. The sponge is being used to remove dirt or stains from the tray, and the person's hand is visible as they work. The background is not visible, and the focus is solely on the cleaning process.