Bulk Pack - Oblong Silver Cake Drum Board - 20\" x 18\" - Pack of 5 This pack of 5, 12mm thick, 20\" x 18\" Oblong Silver Cake Drum Boards are ideal for presenting your cakes upon. Strong enough to support any type of cake, from a heavy fruit cake to a lighter sponge cake.  As a general rule, a 20\" x 18\" drum is perfect for a 17\" x 15\" fruit cake, and a 18\" x 16\" sponge cake. Bulk pack is perfect for multiple cake making! Dimensions: 20\" (L) x 18\" (W) x 12mm (D)