In the video, a person is using a piping bag to apply green frosting onto a piece of parchment paper. The frosting is being piped in a circular motion to create a rose-like shape. The person's hand is visible, and they are wearing a gold ring on their finger. The piping bag has a metal tip, and the frosting is a vibrant green color. The person's movements are precise and controlled, indicating that they are experienced in using a piping bag. The video provides a close-up view of the process, allowing viewers to see the details of the frosting and the technique used to create the rose shape.