Kani 4-in-1 Convertible Car SeatThe Maxi Cosi Kani is made to fit your child for a decade, one car seat with 4 modes of use from birth to 10 years old (5 100 lbs). Kanis slim design allows a 3 across the back seat fit in most vehicles without sacrificing safety or comfort. The 10 position adjustable headrest and 5 position adjustable base allows for easy transitions to ensure a secure fit for your growing child. ClipQuick auto magnetic chest clip gets your child buckled in securely