One4Life takes your child from birth to big kid with Britax Safety and ClickTight Installation. It easily converts from a rear-facing infant car seat, to a forward-facing 5-point harness, to a high-back belt-positioning booster seat. SafeWash cover is safe to machine wash and dry. ClickTight is as easy as buckling a seat belt, so you can install with confidence, every time. Color-coded belt paths show you where to route the seat belt for each installation mode. Plus, easy-read indicators help you find the correct recline angle. A high strength steel frame, crumple zone, and V-shaped tether help absorb crash energy. And, 2 layers of side impact protection surround your child’s head, neck and torso. As your baby grows, adjust the 15-position headrest & harness in seconds to create the perfect fit. When it’s time for booster mode, simply tuck the harness into the built-in storage compartment. With cooling channels, premium padding and built-in arm rests, your child will love the ride. Features: Converts from a rear-facing infant seat (5- 50lb) to a forward-facing 5-point harness seat (22-65 lbs) to a high-back belt-positioning booster seat (40- 120lb). 10 years of use: One4Life convertible to booster car seat grows with your child from 5 – 120 lbs and up to 63” in height ClickTight Installation. Install with confidence, every time. You’ll know it’s right in just 3 easy steps: Pinch to open. Thread & buckle. Click it closed. 15-Position, Quick-Adjust Headrest & Harness create the proper fit as your child grows. Patented V-Shaped Tether with staged-release stitches helps slow and reduce forward movement during a crash. High Strength Steel Frame reinforces the seat structure to help keep it sturdy and stabilized. Quick-Push, 9-Position Recline helps you find the most comfortable fit for your child and the best fit for your vehicle. Rear-facing with infant positioning pillow mode: 5 lbs - 22 lbs; Rear-facing mode: 23 lbs - 40 lbs; Forward-facing mode: 20 lbs - 65 lbs. 2 Layers of Side Impact Protection: energy-absorbing shell and foam-lined headrest surround your child’s head, neck, and torso SafeCell Technology acts as a crumple zone, absorbing crash energy to help keep it away from your child High Strength Steel Frame reinforces the seat structure to help keep it stabilized V-Shaped Tether with staged-release stiches helps slow and reduce forward movement in a crash Quick-push LATCH connectors lock into place with a click, and are easily released with the push of a button Built-in lock-offs make seat belt installation a breeze Easy-Read Level Indicators help you find the correct recline angle for your vehicle 10-Position Harness & Headrest easily adjust to grow with your baby Clicktight Installation:  Britax's commitment to child safety inspired one of their proudest innovations to date - ClickTight Installation. They knew something had to be done about the staggering number of car seats being installed incorrectly. Despite best efforts, parents were still getting it wrong. So Britax developed a 3-step, self-tensioning system that makes it easy to achieve secure installation, every time. Specifications: Product Dimensions: 20.5" L x 19.5" W x 25" H Car Seat Weight: 30 lbs Child Weight Capacity: Rear-facing: 5- 50 lbs Forward-facing: 22-65 lbs Booster seat: 40- 120 lbs Child Height Capacity: Up to 63"