Worn only once for a child's birthday party. This is an inflatable costume that inflates with a fan. The fan and the costume have been tested and are in working order. Most adult inflatable dinosaur costumes are Tyrannosaurus Rex, but this one has a powerful design that you don't often see. The last photo is a picture of it being used. Set Contents: Costume *1, Fan *1, Battery Box *1 Instructions (English, Chinese) *Batteries not included (requires 4 AA batteries). Please note. Size: Free size, for adults: fits heights 150-190cm Points: ◆How to use: After wearing, attach the battery to the battery case, turn on the switch on the battery case, and close the zipper. The product will be immediately filled with air. (Please use a mobile battery for USB charging.) Costume Dinosaur 10type Costume Cosplay T-Rex Dinosaur Cosplay Kigurumi Tyrannosaurus Rex Costume Adult Halloween Inflates with Air Costume Air Cosplay Costume Costume Air In Costume Christmas Cultural Festival Party Dinosaur