The Doona car seat's integrated wheels flip down to convert into a complete travel system. Its a seat with integrated wheels, so that it can easily flip from being a car seat, or even an on the ground rocker, into a stylish push travel system for your loved one. It has passed safety tests as both a car seat and also as a stroller and is the only product to have done so. The system is all integrated so that the wheels fold away underneath the car seat, ready to simply flip out when you are ready to leave your car. The handle extends upwards, ready to push. When the Doona wheels are folded away, then the handle can be used both to carry the infant carrier, but also can be extended when on the floor, to enable easy rocking of a baby. {url removed}