Safety 1stGrow and Go Sport 3-in-1 Convertible Car Seat

One of the greatest benefits is that this car seat grows with the child; from rear-facing at 2.3-18 kg (5-40 lbs) and 48-102 cm (19-40”), forward-facing at 10-30 kg (22-65 lbs) and 74-125 cm (29-49”) and at least two years old, to a belt positioning booster at 18-45 kg (40-100 lbs) and 110-132 cm (43-52”) and at least 4 years old, this car seat is all that you need.