This funny ostrich costume will get lots of laughs this Halloween! 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. The costume is also available in kids sizes so everyone can get in on the fun!