40 Inch Navy Blue 24 Numbers Balloons Dark Blue Giant 24 Foil Mylar Helium Large Digital Balloon Blue Birthday Jumbo Balloons 24th or 42nd Anniversary Party Decorations Supplies

40 Inch Navy Blue Number Balloons Material: auminum foil Size: 40 inch before inflating Color: navy blue Shape: Spherical large number balloon Support: Helium and Air How to use aluminum foil balloons correctly: 1.Found self-sealing valve. 2.Inflate with air pump or straw to blow air into the balloon must be slow and the filling should not exceed 90% to avoid cracking. 3.Can be reused,shrink the balloon with a straw after the party. Tips: Inflated with air will keep staying for longer, helium to be inflated on the day of decoration. As all the aluminum foil balloons were detected by machine, there will be around 0.5% leakage, if you find the problem, please press flatly the self sealing valve, or assist with tape to fix it, any problems or you need help, kindly contact us, we commit immediate customer service. Thank you for your understanding. Choking hazard - children under 8 years recommended to be under supervision of adults.