Welcome to our Helium Balloon selection - We have Floating 18" Helium Balloons for every Occasion - Birthdays, Annniversaries, Good Luck, Thinking of You, Get Well Soon! etc. All our Helium Balloons are delivered filled with Helium Gas (completely safe inert gas) in a special balloon box ready to surprise! Click here for Technicals. We all love balloons, so why not add a balloon to be sent with some flowers or chocolates.