The AACE Booster Seat from Nuna allows you to re-think the way your child rides with a seat that grows just like they do! Has a unique 3D growth system . "Grow Up" is a one-hand, 9 position headrest, "Grow Out" is a shoulder system that works simultaneously with headrest, expanding outward while growing up. "Grow On" has a seat that sports 3 different depths to give growing legs support and space. Converts from a high back to a no back booster. Eight position recline.
Recommended use for high back booster : 40 to 110 lbs./ 4+ Years
Reccomended use for no back booster : 50 to 120 lbs. / 5+ Years