The Cybex Sirona S2 is approved from 61cm to 18kg/105cm. It can be used from birth with the addition of the newborn inlay (sold separately). It rotates 360 degrees, making it easier to put your child in and out the car. It is fairly compact, without compromising on legroom for your child. It is quick and easy to install but heavy to transfer between cars. Read more for an in-depth review of this popular toddler car seat.