FECEDY Aluminum Film Pink Champagne Bottle and Gold Goblet Hydrogen Balloons for Party Decoration Material:High quality Eco-friendly Aluminum Foil balloons Color: Pink Champagne Bottle and Gold Goblet Hydrogen Balloons Size:Champagne Bottle:39"x19"; Goblet:39"x17.5" It can inflate Hydrogen and helium etc..(can float); you also can inflate air but can't float. pls choose according to your need! The Balloons from Brand "FECEDY",it is suitable for Wedding,Valentine's Day,New Years, Celebrations, Graduations,birthday,baby shower,Christmas, Weddings etc.