SuperShape @ Symbol Silver Foil Balloon Silver SuperShape Letter B White Gold Foil Balloon Amscan Buy 40 inch Silver Letter B Balloon, Big Size Alphabet Foil Mylar Letter A Balloon 55inch Standup Silver balloons vancouver JC Balloon Studio. Silver Foil Helium SuperShape Balloon in Letter A. Includes self sealing valve to gas from escaping after it's inflated. You can inflate this balloon with a helium Inflator or with air using a balloon air Inflator. SIZE AND MATERIAL: 37" x 34" (93 cm x 86 cm) Foil Balloon OTHER INFORMATION: Price includes helium inflation. When cared for correctly, this balloon is refillable so can be used more than once. Party Town supports the responsible disposal of balloons to protect our environment.