$730 All-in-One Car Seat: One4Life Slim is a convertible and harness-2-booster seat in one! It easily converts from a rear-facing infant and toddler seat (2.3-22.7 kg/5-50 lbs.) to a forward-facing seat (10-29.5 kg/22-65 lbs.) to a high-back booster seat (18.1-54.4 kg/40-120 lbs.) ClickTight Installation: Install with confidence in 3 easy steps: pinch to open, thread and buckle, click it closed! SpaceSaver Design: Slim outside, spacious inside! The 44.5 cm (17.5 ) seat is designed to fit 3 across without compromising on trusted Britax safety and premium comfort. Premium Fabrics: The woven m lange accents give the car seat cover a tailored look, while the soft knit fabric on the padding and inserts helps keep your child comfortable during every ride Hassle-Free Cleanup: Extra space between the shell and base means you can clean under the seat with ease and with minimal grooves in the seating area and base, you can wipe it down with no fuss