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). Assume your position under the bridge and get ready to scare all your friends in our Kids Inflatable Troll costume! This hilarious costume is one of a kind and sure to steal the show at your next party, It\'s is especially good for Carnival season or Halloween!