The Britax One4Life convertible to booster car seat is the only all-in-one with ClickTight, allowing it to be easily installed in 3 steps that takes just seconds. Being rear and forward facing with extendable features, it can grow with your child from infancy for 10 years, and over that time you will know it's correctly installed. Every time. This product offers superior protection with 2 layers of side impact protection surrounding the head, neck and torso. Plus, SafeCell Impact Protection that uses an integrated system of safety components that provides unmatched protection for your child. These features include a steel frame, energy-absorbing base, V-shaped tether to minimise seat rotation and staged-release stitches that slow and reduce forward movement during a crash. The One4Life provides maximum fit and comfort with the quick-push, 9-position recline which helps you find the best fit for your child and your vehicle. Along with the 15-position, quick-adjust headrest and harness this product is ensured to provide the perfect fit as your child grows.