Complete Air LX Convertible Car Seat keeps Baby Safe on the RoadThe Safety 1st Complete Air LX convertible car seat offers the latest in safety technology for your baby with its Air Protect side-impact technology. The protection extends long-term in both the rear-facing infant position and the forward-facing toddler position. The Complete Air LX convertible car seat by Safety 1st offers a completely convertible car seat that is suited for infant weighing five to 40 lbs. and stretching from 19 to 40 inches tall, in the rear-facing position. As your little one grows into a toddler, the car seat can be used in the forward-facing position and can accommodate your little one from 22 to 65 lbs. and heights of 34 to 52 inches tall. The side impact protection reduces the forces in the event of impact with the release of air QuickFit Harness.