One Star Inflatable Beach Ball. When you receive this ball it will measure 16 inches flat and when blown up it will measure 10 inches high and 32 inches around. Have several balls already inflated for when your guests arrive, then sit back and watch the fun begin. After the party have everyone sign a beach ball and give it to the guest of honor for a keepsake. Be sure to check out all the other affordable favors and decorations we have to offer.