Cute Gold Alphabet Letters Balloons Happy Birthday Party Decoration Aluminum Foil Membrane Ballon You will get 13pcs balloons,Happy Birthday - 13 letters Shape Foil Balloon Size:14Inch (1cm=0.3937inch) Material is aluminum film, color uniform, spherical beautiful Can be repeated use, convenient inflation and deflation! When the inflation is completed, please put the ball to pinch flat, the ball comes automatically sealing glue!