Let everyone know your guest of honor is another year older with our Giant Foil Rainbow Cupcake Balloon Centerpiece. Measuring 28.5 inches, this standing cupcake balloon will draw eyes at your upcoming birthday party. Fill it with air using the inflation tabs, then put it on display in the middle of your dining table, gift drop-off table, or any other party table. Want more ways to add some rainbow to your celebration? Shop the rest of our rainbow party supplies.