This car seat is easy to fit and has excellent usability it is suitable for children from birth to 4 years approx birth to 18kg40lbs it is used rearward facing from birth to 9kg20lbs then forward facing from 9kg20lbs to 18kg40lbs it has 5 seat recline positions there is a 5 point harness which has individual harness tensionners for added safety the seat has deep wide wings with side impact protection for teh whole body it has a newborn body support cushion and a head cushion chest