Kids size Trex costume is suitable for kids from 130cm to 155cm in height Attention: Adult supervison is required For Inflatable T Rex Adult Costume,Keep away from fire , the material is not fireproof ,it’s dangerous to close the fire . Securely cinch all drawtrings so air cannot escape The costume suit for games,halloween ,cosplay, bars, clubs, dance PARTY, parks, television programs, supermarket chains, hotel chains, the annual events, carnival, festival, opening ceremonies, weddings and so on. Simple using method and fantastic look is your best choice for your fancy dress party time. Installation instructions 1: Use a screwdriver to unscrew the screw in the battery pack, put in 4 AA batteries in battery pack , then fix the cover . 2: unscrew outer fan ring counterclockwise ,screw outer fan ring back into place to secure fan to costume ( usually, the fan is installed in costume, you can pass this step ) 3: plug in power cord from battery-pack to fan 4:step into costume and clip battery pack to your own clothing.move battery-pack switch to ON position . It wil take about some minutes for air inflating with our strong power blower fan,you don’t need to wait too long . 5: Finshing! Kids T rex inflatable costume has been inflated enough ,Kids can walk now like a king of dinosaur world !!!!!