1套13個字母, 用於貼牆或玻璃不能飄起,可自行充空氣HAPPY BIRTHDAY14吋鋁膜氣球不能飄起 可貼牆或玻璃不能飄起,可自行充空氣Cannot float in the air, can stick on wall or window, can bump air by customers請注意, 40吋大的數字/字母先可以飄起 Please kindly note that the floating size need 40inch letter or number foil balloon生日氣球 Birthday Balloon..