Unboxing Britax One4Life ClickTight All-in-One Convertible Car Seat & Installation

Directly from their website:
Britax One4Life ClickTight All-in-One Car Seat grows with your child and converts to a booster, accommodating your growing child until 10 years old.
With the ClickTight feature, it’s easy to install in seconds, and you’ll know it’s right. Every time. Travel in total confidence, knowing your child is surrounded by trusted Britax safety and full body protection.
Convertible to booster car seat grows with your child from 5 - 120 lbs and up to 63” tall.