Your child will have lesser mammals running for their lives when they show up in the kids' giant t-rex skeleton inflatable costume. This costume is huge and brings a brilliant Halloween/Day of the Dead style twist to our hugely popular inflatable t-rex costume that took the internet by storm. To get the kids' giant inflatable t-rex skeleton costume ready for action, simply step inside and turn on the inflating fan (requires 4 x AA batteries, not included).