18" Foil Balloon sold flat (packaged)
Helium Capacity 0.5 cubic feet each. Self-Sealing Valve (Can be reinflated)
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Inflate balloon with helium at room-temperature leaving wrinkles around the balloon seam. Can be re-inflated. Average good float-time: 3-4 days but may last longer depending on conditions. Once inflated, avoid exposure to extreme temperatures. In cold air, the helium balloon will deflate slightly, exposure to warm air will restore proper inflation. Excessive heat could cause the balloon to burst.
Caution: Do not release helium-filled balloons outdoors or near power lines. This balloon may conduct electricity. Misuse can cause injury. Dispose of properly. Helium gas should never be inhaled.