The Britax One4Life convertible car seat bundle includes two all-in-one car seats with identical safety and convenience features, using ClickTight installation and converting from a rear-facing infant seat up to a forward-facing booster for children 5-120 lbs and up to 63 inches. Both seats have a 10-year lifespan. Key features are a steel frame, SafeCell crumple zone, and patented tether for trusted safety. The quick-adjust no-rethread harness and headrest, with 15 positions, ensure a secure fit as your child grows. Nine recline positions, with easy-to-read level indicators, provide the right angle for your vehicle. Removable pillow and body inserts keep infants cozy. The seats differ in their fabric and padding - one has a Cool Flow carbon weave for airflow, the other a ventilated mesh layer. Both have dishwasher-safe cup holders and machine-washable covers. With identical safety and a choice of comfort features, this bundle lets you equip two vehicles with durable, adjustable Britax convertible seats.