*Returns not accepted on any opened, used, or defective product. Contact manufacturer directly for further defective products/parts. From Nuna, this car seat features: Recommended use for high back booster: 40 to 110 lbs | 38 to 60 in, suggested usage 4 years + Recommended use for no back booster: 50 to 120 lbs | 38 to 60 in, suggested usage 5 years + 3D growth system Grow up - one-hand, 9 position height adjustable headrest Grow out - shoulder system works simultaneously with the headrest, expanding out while growing up Grow on - seat sports 3 depths giving growing legs plenty of support and space 2-in-1 design Converts from a high back to a no-back booster secure Energy-absorbing foam and SIP pods take side impact security to the next level Belt positioner aids in correct shoulder belt routing and minimizes user error Colored belt path indicators help decrease the risk of user error Lower anchor connectors easily secure car seat to vehicle seat during use or transport comfortable From fabric to foam and beyond, each element is smartly sourced to be flame resistant with no added fire retardant chemicals Customizable recline thanks to 8 different positions( *) Ventilation panels within the shell, and breathable, washable knit fabric Little arms can take a break thanks to cozy, built-in armrests ( *)in high back mode only when using lower anchor connectors sleek Sleek and chic micro-knit fabric is easy to remove and machine washable Included cup holder is removable and dishwasher safe accessories AACE starter kit includes a cup holder, belt-positioning clip & a set of LATCH guides (included with purchase) Car Seat expiration dates are from date of purchase Imported.