These are Made of high quality aluminum foil, thick and auto-sealing, no leaks, can last for days when inflated. Give Your Big Party A Personalized Presentation With Foil Balloons! This Collection Of foil Balloons Features Twin Boys "ITS A BOY "Bottle shaped blue color foil balloon, So You Can Mix And Match. Whether You'Re Celebrating A Shower Party, welcome party, These Shining Twin Boys Theme Party Blue foil Balloons Are Perfect For Your Celebration. Mix And Match With Coordinating Foil And Latex Balloons, Polka dot balloons & balloon accessoriesITS A BOY Bottle shaped foil balloon X 2Self sealing mylar foil balloonFor all occasions including birthday party,shower party,welcome party, 6 month birthday party, twins welcome partyColour: BLUEAvailable IT? A BOY Bottle Shape Blue Color Printed Foil Balloon for Twin Boys