In the video, a person is seen holding a piece of cardboard and a small wooden piece. The person is using a nail to make a hole in the center of the wooden piece. The person then places the wooden piece on top of the cardboard and uses a nail to secure it in place. The person then uses a hammer to tap the nail into the cardboard, securing the wooden piece in place. The person repeats this process several times, using different pieces of cardboard and wooden pieces to create a pattern. The video ends with the person showing off the finished product, which is a series of cardboard and wooden pieces arranged in a specific pattern.