2 Pack 18" 4D Metallic Blue Sphere Mylar Foil Helium or Air Balloons

2 Pack 18" 4D Metallic Blue Sphere Mylar Foil Balloons, Re-Inflatable with a 1-way built-in sealing valve that locks in air or helium for long-lasting inflation. These balloons can be filled with air or helium, and they are reusable. The balloons are shipped flat and can be filled with air or helium, with a note that they can be filled by inserting a straw into the valve and squeezing the air or helium out, then folding them up and storing them away from direct sunlight.