Introducing the Inflatable Grandma Costume Adult, a hilarious and attention-grabbing outfit that is perfect for Halloween, stag dos, and hen parties. This one-size-fits-most costume is incredibly easy to wear, simply slip it on and let the fan inflate the costume in seconds. The fan lasts up to 7 hours, ensuring you can enjoy a fun-filled evening of laughter and entertainment. Please note that 4 x AA batteries are required (not included).