12, 9, 6 in. Bottom tier chocolate with chocolate BC. Other two WASC with BC. Used Sugarshacks buttercream recipes for both flavors. Fabulous!! My first 3 tier cake and it had to travel for an hour. Stressful, but my delivery boy (husband) did an excellent job! We were guest at the party, and got lots of compliments. I also cut/served, and that was a first also. (Indydebi style) I need to practice that some more is all I'm gonna say about that. Not as easy as I thought!!