9 High-quality marvel foil balloons: There are 9 foil balloons in the package.(marvel balloons include spiderman balloon, hulk balloon, iron man balloon, captain america balloon). Premium material: Our Avengers foil balloons are made of high-quality aluminum foil, fine workmanship, non-toxic and odorless, harmless to your body, durable enough , which is more reusable, making it safer. Easy to use: Just find the inflation port, fill the balloon about 80% with air or helium, then the balloon inflation port will be automatically sealed; if you want to deflate, you can insert a thin plastic tube into the inflation port and use hand presses the balloon. When all the air in the balloon is discharged, the balloon can be reused. Wide application: Our Marvel party decorations set is suitable for all events,such as birthday party, wedding, baby shower,marvel themed party, tropical party supplies and so on. Great gift for your kids: Each super hero balloons is brought to life by inflating it with helium.It will be a great gift for your friends, family and loved ones.