Celebrate their milestone 18th birthday in style with this large gold and white balloon featuring a shimmering starry design and the number 18. Perfect for surprising them on their big day or decorating the party venue, this stunning foil balloon adds instant sparkle to any celebration. Delivered uninflated, it’s suitable for both helium and air inflation and measures approximately 31 inches. Please note: this balloon may conduct electricity — use counterweights and avoid metallic ribbons.