One size fits most kids aged 5-11. Perfect for Halloween or fancy dress parties. Easy and simple one piece slip on. Fan inflates costume in seconds & lasts up to 7 hours. Requires 4 x AA batteries (not included). Don't let your costume be the elephant in the room at your next party. If you don't want to be irr-elephant, then jump into our full body elephant costume! Great for any event or Carnival season!