Is your little one about to outgrow his or her Graco convertible car seat? It?s time to buy a Graco youth booster car seat and the Graco Platinum CarGo youth booster car seat is a great choice. Children older than a year and 27″ to 43″ and between 20 and 40 lbs. will rest comfortably in the seat in a 5-point harness. between 35″ and 54′ and between 30 and 100 lbs. – the harness may be removed and …