Party Decoration Baby Shower Decorations Supplies Happy Birthday Aluminum Foil Balloons 18" Foil Mylar HeliumRound Inflatable Balloon for

made of high quality aluminum foil, thick and durable, auto-sealing, no leaks, can last for weeks when inflation. there is a little hole on the top of the balloon, you can fill the balloons with air or with hydrogen and helium to make them float widely applied on many occasions, ideal party decoration for all ages, you can easily match any party theme and decor automatically seal itself once they are filled. You can use the pump or straw to blow the balloon, pinch flat the mouth of balloon after inflation, they will be sealing automatically..syi