CELEBRATE IN STYLE:"BE HAPPY" foil balloon 18" makes an excellent decoration and adds a happy atmosphere to any occasion. The impressive design features a vibrant yellow background with a "BE HAPPY" message in green & red respectively. 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.