The base is 2 ft by 2 ft and made out of rice crispy treats and the blue river running across it is actually a lemon lollipop river which was poured on and left to cool. I covered the entire base with butter cream frosting. The stem of the cake was 8 inches around and 10 inches tall and the mushroom top was 15 inches around and 6 inches tall. The cat on top was molded out of rice crispy treats and covered in fondant