6 inch at the top & 8 inch at the bottom.Wedding Cake #1PRODUCT INFO6 inch at the top & 8 inch at the bottom. INGREDIENTS Vanilla Cake: cake flour, eggs, butter, sugar, salt, baking powder, vanilla, milk Buttercream: egg whites, butter, sugar, vanilla Flower: buttercream, wilton icing color LETTERINGFree GIFT$2.00 for ribbon packaging