Tyrannosaurus inflatable fan-operated costume It's not really a party without a Tyrannosaurus Costume. Everybody knows that. Crash the party dinosaur-style with the Adult Dinosaur T-Rex Inflatable Fan-Operated Costume. Thankfully, wearing the costume is just the opposite of lugging an actual dinosaur around, thanks to a feather-light material. This durable, one-size-fits-all costume is constructed with terylene, an extremely lightweight polyester which will keep you cool and allow you to wear the costume while not exerting effort or feeling weighed down or sweaty. An included small fan unit keeps the costume constantly inflated, and the fan's battery pack (4 AA batteries required, not included) simply clips to your pants or belt inside the suit. You can party for several hours on fresh batteries. Dinosaurs may be extinct, but with the Dinosaur T-Rex Inflatable Fan-Operated Costume, you'll be ready to scare up some new adventures. Order today. Features of the Dinosaur T-Rex Inflatable Fan-Operated Costume: One-size-fits-all inflatable suit Battery-powered fan unit included Lightweight battery pack clips onto your pants/belt Several hours of fun on fresh batteries Fastenings around neck, legs, and arm keep costume air-sealed Cool, super-lightweight terylene (polyester) construction — won't weigh you down!