Why be an inflatable alien when you can become a GIANT inflatable alien? The adults' giant inflatable alien costume brings with it some out-of-this-world fun that will have your friends probing you to find out where you bought it (no, not like that). Bring an extra-terrestrial touch to your next Halloween or fancy dress party with this immensely fun, massive inflatable costume. This costume inflates using the attached battery-operated fan, powered by 4 x AA batteries (batteries not included).