You won't have to light the 7 Gold Number Balloon Cake Topper, it looks good as it is. Measuring 9" x 4", it is a gold balloon "7" on a stand. They can be used along or combined with any of our other balloon cake toppers to form whatever number you need. Cake toppers are self-inflating and do not require helium. With wholesale pricing and bulk quantities, our 7 Gold Number Balloon Cake Toppers 12 ct are perfect for event planners, caterers, and home hostesses alike.