22 Inch 360 Degree 4D Stripe Blue Red Balloons, Aluminum Mylar Carnival Theme Pa
【SELF SEALING VALVE & EASY TO USE】The Charming 4D foil balloons have self-sealing valve does not need to be knotted for easy inflation and deflation. It can be inflated with air or helium. When filled with helium, the 4D Stripe foil balloons can float in the air; after filling, press the valve of the balloon to seal it.