Cakedrum Gold Square 20cm The Cakedrum Gold Square 20cm has a festive golden colour. The square drum is ideal for presenting square cakes and can of course also be used for other shapes of cakes. When presenting a cake, always make sure the drum is a few centimetres bigger than the delicacy. This drum measures 20 by 20 centimetres and is about 1.3 centimetres thick.