Have lesser mammals running for their lives when you show up in the inflatable Ride On t-rex costume. Thanks to a clever optical illusion, this costume makes it look like the toughest dinosaur of all time is giving you a ride to wherever you need to go. It's guaranteed to get laughs everywhere you wear it. To get the inflatable Ride On t-rex dinosaur costume ready for action, just step inside and turn on the fan (4 x AA batteries required, not included).