The Step and Go™ Travel System by Safety 1st is the easiest stroller you'll ever open, featuring the only step-to-open design that lets you get going with a simple step on the pedal. There's no need to drop the diaper bag or fuss with hard-to-reach locks. Finally, a stroller that knows parents always have their hands full. The included onBoard™35 infant car seat features Side Impact Protection and extended use from 4-35 pounds with a center front adjust harness for the best fit as baby grows. With 5 different angles to choose from, the stay-in-car base makes it easy to get the right fit for your family's car. The car seat is lightweight and comfortable to carry thanks to the Carry Curve handle. QuickClick™ allows the car seat to attach easily and securely onto stroller with one click.