CELEBRATE IN STYLE:This Off-set Letter Foil Balloon makes excellent decorations and adds a happy atmosphere to any birthday. The design features a square foil balloon on black background with a "Happy Bday" message in multi-color capital fonts. 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.