16 Inch Number Foil Balloons Wholesale | Birthday & Party Balloons 16 Inch Letter Foil Balloons Wholesale | Alphabet Mylar Balloons for Party Material: Aluminum Mylar Foil, 16inch 40cm.High quality imprint technology, neat edge, not easy to explode and leak, ideal for parties decoration. Usage: There have holes on the top to string together or to hang, Can be deflated with a straw to reuse, can inflate with both helium or air. Perfect for girls boys kids & adults any Birthday Celebration,Christening,Wedding Parties,Graduation festival decoration. We support the customization of individual balloon packaging , to print your LOGO on the balloon packaging.