Party balloons are mostly made of a natural latex tapped from rubber trees, and can be filled with air, helium, water, or any other suitable liquid or gas. The rubber's elasticity makes the volume adjustable. Premium-Quality Balloons will for every celebration.Size :10 inches round,Blow them up with either your mouth, air balloon pump, or helium. Balloons are used for decorating birthday parties, weddings, corporate functions, school events, and for other festive gatherings.