Who doesn't like cake! Celebrate that special someone's birthday with this fun 35cm (Air-Fill) Birthday Cake Foil Balloon. Combine a couple of these Kaleidoscope balloon designs with a few of our birthday latex balloons to create a bouquet cluster to give someone a special present or use it as part of a birthday celebration. This balloon includes a self-sealing valve, preventing the gas from escaping after it's inflated. The balloon can be inflated with a balloon air inflator or air only. Helium is not suitable. Balloon arrives uninflated.