CELEBRATE IN STYLE:Uplift your mood & birthday spirit with this 18" Only Good Vibes Happy Birthday Foil Balloon. The perfect balloon for setting your birthday scene positive & exciting. BALLOON BOUQUET:These party balloons contrast nicely with other foil or latex balloons to make a nice balloon bouquet or balloon arch and bring out the best in any photo backdrop or selfie booth. HELIUM INFLATION:To inflate it with helium please visit your closest Wanna Party store or contact any helium gas provider near you. Filling charges are extra. SIZE:The Balloon measures 18 inches and is made of high-quality aluminium film, which is safe and non-toxic. NOTE:Balloons arrive uninflated.