The Britax One4Life convertible car seat bundle includes two identical convertible car seats featuring four configurations from rear-facing infant to forward-facing booster for children 5-120 pounds and up to 63 inches tall. With innovative ClickTight installation, these car seats securely fit most vehicles using the seat belt, with no base required. Safety features like a steel frame, SafeCell crumple zone and patented tether provide trusted protection. The bundle allows you to use the same safe, convenient car seat as your child grows for the next 10 years. The adjustable headrest and no-rethread harness accommodate growing children 5-120 pounds with a customized, secure fit in seconds. Nine recline positions, cooling fabric and a machine-washable cover ensure everyday comfort. Built-in cup holders provide onboard snack space. With matching modern color schemes, this convertible car seat bundle simplifies safe family travel for a decade.