"Happy Birthday" foil balloon is bordered with fun patterns and pictures of birthday icons like cake, hats, and more... all in a mesmerizing prism design! Add to a flower arrangement, basket, or gift... or create a giant balloon bouquet. Plus, sturdy foil material holds helium longer than latex balloons and cannot be easily popped. Case includes 20 uninflated 18" "Happy Birthday" prism foil balloons with attached ribbons. Balloons arrive uninflated; however, foil balloons purchased online can be inflated at your local Dollar Tree store at no additional cost. To have your balloons filled, please schedule with the store manager and present a copy of your purchase receipt.