Cake has a 5L keg inside. Cake built around the keg. I used 7 - 14" rounds each about 2' high. The cake is chocolate brushed with Guinness stout beer and I poured about 1/4 cup of Guinness stout beer in each batch of icing. All total, 5 bottles of Guinness in the cake and icing. I used rock candy for the crushed ice. This was made for my annual pool party. Everyone was surprised that it had a 5L keg of beer inside and it actually worked.