Britax One4Life All-in-One Car Seat with ClickTight Installation + SafeWash FabricsThe One4Life all in one car seat and booster combo grows with your child from birth to big kid. It begins in rear facing mode with an extended capacity of up to 50 lbs, allowing your child to ride rear facing longer. It easily converts to forward facing toddler mode (30 65 lbs) and belt positioning booster mode (40 120 lbs).* Thanks to ClickTight technology, you can install the seat confidently every time. As your child grows, you can smoothly adjust