Give your big party a personalized presentation with Silver Letter Balloons! This Silver Letter O Mylar Balloons is 40 inches tall. Add this letter balloon to your celebration as abbreviations, initials or name ? a delightful alphabet addition to your party decorations. Mix and match with coordinating foil and latex balloons, balloon accessories, solid color tableware and other party supplies for a custom party theme Note: Balloons arrives uninflated. To inflate it with helium please visit your closest Wanna Party store or contact any helium gas provider near you. Filling charges are extra.