The video shows a person wearing white gloves using a clear glass to cut out a circle from a green cake. The cake is placed on a white surface, and the person carefully removes the circle, leaving a hole in the cake. The cake appears to be a sponge cake with a dense texture. The glass used for cutting is cylindrical and transparent, allowing the viewer to see the cake through it. The person's movements are precise and controlled, indicating that they are experienced in cake decorating.