100% Polyester Permium materials,the Halloween costume is made of polyester that is strong and durable so that you will never have to worry about any tears or holes. We carefully check each product before shipping to make sure that it's flawless so you can receive it in top condition Perfect for Christmas, Halloween, Cosplay,Oktoberfest, Charity Fun Runs or just an ordinary day Requires 4 x AA batteries (not included), AA batteries to operate the blower for inflating. Air pump and blower is included. re-chargeable AA batteries are possible to use Big hit in the crowds. Easy set up. Easy to move about. Easy to walk, jump, sit, run. Great fun. Detailed user manual is included Note. Please tighten the outer ring to hold the fan in place before putting on the costume, in case the ring becomes loose during shippment then the fan would fall out. If the costume can't be fully inflated, pls loosen the ring and turn the fan towards the front to better inflate the head, also, tighten the drawstrings as tight as possible.