Safety 1st - onBoard 35 Air Infant Car Seat: * Rear-facing for (4 - 35 lbs. and up to 32" in height) * Featuring Air Protect revolutionary side-impact technology * Safety 1st Baby Car Seat immediately reduces side-impact forces through the precise release of air * Extended use - designed to fit a tiny 4-lbs. baby to a 35-lbs. baby * Customizable insert and low harness slots - ideal for preemies and adjustable for growing babies * 17% more leg room than most infant car seats * Carry Curve Handle features ergonomic design * Base Belt Lock easily secures your vehicle seat belt during installation * One Click LATCH installation system