Celebrate other year with our foil bright color "happy birthday" letter balloon banner kit. In this kit, you'll find 13 14-inch foil balloons spelling out happy birthday, 10-foot twines, and a paper straw. Inflate the balloons with air using the paper straw included in the kit. Then, slide the balloons onto the pieces of twine with the tabs on top of the letters. Once the banner is completed, hang it up along a fence or as a photo booth backdrop. Want more ways to bring on the celebration vibes? Shop the rest of our birthday party supplies.