Upgrade To First Class With Onboard Air Baby Car SeatSafety 1st Onboard 35 Air Baby car seat is a fantastic car seat that has been improved and upgraded to offer more. More leg room for the kids means less fussing and wiggling in the car. More protection means more relaxed parents and a safer baby. The Safety 1st car seat has been improved with serious technology advances. The release of air at the time of impact allows for a reduction in injury and discomfort. Not only is this seat tops in safety, it also looks like it was custom made for your vehicle's interior.The Onboard Air Baby car seat is easy to install, and you need to do that only once, thanks to the detachable bucket seat. The car seat base stays put, while the seat itself lifts out so gently, it will not wake the lightest of sleepers. The seat works for children up to 35 lbs. but thanks to the preemie insert, it cradles the tiniest of newborns in perfect comfort and safety.