This All-In-One Convertible Car Seat fitting children from 5-110 lbs. is the only car seat you'll ever need providing rear-facing, forward facing and booster capabilitiesThe Symphony DLX helps protect rear facing infants from 5-40 lbs., forward facing toddlers from 22-65 lbs. and high back booster mode supports children 40-110 lbs.Easy to install in vehicles in only 60 seconds using Evenflo's exclusive, auto-retracting Sure LATCH connectors with no pulling necessaryThe 5-point Infinite Slide harness easily slides to adjust for an accurate fit every time which means easy in and out for your childEvenflo's proprietary e3 Side Impact Protection significantly reduces side impact crash forces up to 50% through 3 layers of expanded zone protectionSure latch connectors just click, click, push for super-fast, super-snug installation in less than 60 secondsE3 side impact protection significantly reduces side impact crash forces up to 50% through an expanded zone of protection and 3 layers of superior protectionAn all in one car seat fitting children from 5 to 110pounds the only car seat you will ever needInfinite slide harness easily slides for an accurate fit every time no reworking the harness as child growsUp-front multi-position recline for child's comfort while asleep or awake