One size fits most adults. Perfect for Halloween or Carnival season. 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 costume party. If you don\'t want to be irr-elephant, then jump into our full body elephant costume! You\'re sure to steal the show in this hilarious costume. It\'s great for a themed event or Carnival season!