16" inch single blue alphabet letter number balloons aluminum hanging foil film balloon wedding birthday party decoration banner air mylar balloons (16 inch pure blue 0) reians note: the 16 inch letter / number can not fly with helium materials: aluminum foil letters: 1pc/pack color: pure blue optional size : 16inch/pcs package : 11 letter/number(16inch) 2plastic straw x 1pc (5.7 inch) tip : all aluminum foil balloons are detected by the machines , if air leak occurs while inflating, please press the inflatable hole or use tape to assist the automatic sealing of the balloon. any problem or you need help, kindly contact with us , we will solve it for you at once.