The Radian 3QXT is the ultimate 3 across All-in-One convertible car seat that transforms as your child grows from rear-facing harness (4 - 50lbs), to forward facing harness (22 - 65 lbs), to high back booster (40 - 120 lbs). The Radian 3QXT provides complete Newborn protection with SafePlus Newborn travel high wedge, SafePlus Newborn insert, Safe+ 2-in-1 infant positioning liner and SafePlus Newborn harness pads, to provide a custom fit from birth. As your child grows, the SafePlus Steel anti-rebound bar increases stability and reduces rebound rotation by up to 50% for extended rear-facing to 50lbs. As they transition to forward facing, the SafePlus easy adjust 12-position headrest is contoured to improve head containment and provides a 22% increase in occupancy space from the Radian R series. The 3QXT is engineered with 8 layers of side impact protection without compromising the 3 across installation in most midsize vehicles. These great features have been combined with SafePlus engineering, with the 3QXT subjected to a combination of rigorous crash tests, including front, rear, and side impacts, and rollover tests to ensure the safest seat possible. Coming in a range of bold colors, there is a Radian 3QXT to suit every child, and for added parent convenience, the Radian 3QXT cover is easily removable and machine washable.