Get a move on! This inflatable ostrich costume will have you running around like crazy. The included inflator fan requires 4 'AA' batteries and screws into place on the back of the costume. The 100% polyester ostrich suit inflates throughout the costume. The suit slides on over the legs and closes shut with a bungee cord around the waist. The ostrich legs also close shut with bungee cords to keep the air inside. It's way better than riding a horse across the plains!