This 3 across All-in-One car seat is suitable from birth to booster (1.8 - 54 kg / 4 - 120 lb.) Featuring advanced 4-in-1 newborn protection and all new SafePlus™ engineering to provide the next generation in car seat safety.

• The Most Advanced Radian All-in-One Convertible Car Seat: from infant to booster seat, rear and forward facing the Radian® 3QXT adapts as your child grows for 10 years of use (1.8kgs. - 54kgs. / 4lbs. - 120lbs.)
• 4-in-1 Newborn Protection: designed for safe rear facing travel from (1.8kgs. - 22.7kgs. / 4lbs. - 50lbs.) complete with SafePlus™ inserts and SafePlus™ steel anti-rebound bar to reduce rebound rotation by 50%
• SafePlus™ Engineering: rigorously tested Radian® all-in-one convertible car seat; featuring SafePlus™ steel rear facing anti-rebound bar, steel reinforced frame, advanced side impact protection and Diono SuperLATCH attachment
• The Original Radian® 3 Across: built with Diono's famous Radian® slim fit convertible design for a 3-across option only with Diono Radian® combinations, without compromising child or passenger comfort; feel safe having your children secure in the backseat
• One Hand Easy Adjust 12 Position Headrest: contoured to improve child head containment and provides a 22% increase in occupancy range from the Radian® R series.