DESC: With all the convenience of the KeyFit Bases installation, what could be better than to have KeyFit Bases in your multiple vehicles? The Chicco KeyFit offers you this convenience with the option of buying extra KeyFit Bases. The KeyFit Bases spring-assisted level foot, two precision bubblelevels, and Center-Pull LATCH adjustment guarantee quick and correct installment from either side of your vehicle and give you confidence that your child is safely secured in your vehicle.