The Britax Grow with You ClickTight Plus harness-2-booster car seat and Britax Poplar S convertible car seat bundle offers two car seats to grow with your child from infant through the booster seat years. The Britax Grow with You car seat starts as a forward-facing 5-point harness seat for toddlers and converts to a belt-positioning booster as your child grows, accommodating up to 120 pounds. It features ClickTight installation technology, a 9-position adjustable harness and headrest, a machine-washable cover, and Britax safety features like a steel frame and crumple zone. The Britax Poplar S slim convertible car seat fits rear-facing infants up to 50 pounds and transitions to forward-facing mode as your child grows taller. It also uses ClickTight installation and has a 14-position harness and headrest for a customized fit. This 17-inch wide seat is designed for 3-across fit in most vehicles to allow flexible seating arrangements. With stages from infant through youth, premium comfort features, and trusted Britax safety, this bundle offers two seats to grow with your child for years of reliable use.