8 inch stacked vanilla cake, torted and filled with chocolate ganache and frosted with French vanilla buttercream. The Ironman "reactor" in the center of the cake is a toy that I attached by cutting out a circle in the side of the cake and covering the back of the toy with fondant and sticking it in the cake with frosting and then covering around it with fondant. When you push the button, it makes all sorts of "ironman" sounds, the Ironman on top says "I AM IRONMAN!" So, it's a talking cake! The little boy LOVED it! I have a video on Youtube, showing my husband playing with all the buttons :)