Single 12", 10", 8" and 6" bowl layered to make the "hill", with support/cardboard under 8". Graham cracker crumbs created trail for my ATV representing my brother-in-law's 40th (going up hill yet) and black road for my husband's motorycle representing his 59th (over the hill). Used the spice cake extender recipe and people loved the taste. Not fancy as I was also preparing for my daughter's baby shower.