Drive into a 2-in-1 dino race-car world with a T-Rex that easily transforms into a race car Add T-Rex roars, awesome engine sounds and flashing lights with the push of a button to rev up kids' imagination Crack open the egg to find all the pieces needed to build a dinosaur racer; may require adult assembly Create a Switch and Go world, then race or challenge other Hatch and Roaaar Egg creatures (sold separately) Intended for ages 4+ years; requires 1 AAA battery; battery included for demo purposes only; new battery recommended for regular use; may require adult assembly Create an egg-cellent dino world with the Switch and Go Hatch and Roaaar Egg T-Rex Racer! Open the egg and find all the pieces you need to build this 2-in-1 dinosaur race car. Zoom the awesome race car around with pumped-up engine sounds and the voice of the race car driver. Then easily transform it into a terrifying T-Rex! Add thundering T-Rex roars with the push of a button to rev up imaginative play. Create a Switch and Go world, then race or challenge other Hatch and Roaaar Egg creatures (sold separately). Intended for ages 4+ years. Requires 1 AAA battery. Battery included for demo purposes only. New battery recommended for regular use. May require adult assembly.