AirLoonz are the perfect balloon decoration to highlight your Sonic the Hedgehog party! This Sonic The Hedgehog 2 Airloonz balloon stands 53" high when fully inflated and is designed to be inflated with air only. No helium required! AirLoonz balloons include a color matching set of foil mylar balloons that creates a sturdy base for the main balloon to rest on and stand upright. Each AirLoonz has 2 inflation points. One in the top part of the balloon and one in the base. Airloonz can be inflated with a balloon air inflator or a hand pump. Easy to place elastic strap included. Use a balloon weight or any household item, like a can of soup, in the base to stabilize. Balloon includes self-sealing valves, preventing the gas from escaping after it's inflated. Balloon arrives un-inflated.