Size and shape: Number Inflated diameter in inches (centimeters): 23 X 35 (58 X 89) Gas capacity in cubic feet (cubic meters): 1.52 (0.043) Average # per 242 cu. ft. tank: 159.0 NUMBER FIVE SILVERSKU: 0071444304153€15.00PriceSales Tax IncludedHeliumFilledMaterialFoilSizeNumberQuantityAdd to Cart