This is the Orbit baby travel system, which includes the stroller, stroller seat, two car seat bases and the infant car seat. The used baby seat. Used for 9 months with first child, then properly stored for 3 years before it was used for another 9 months. Never been in an accident. Very comfortable and easy to carry. It comes with 2 orbit car seat bases. The travel system makes it easy to take your child in and out of the car. The infant seat also attaches to the stroller using the two side handles. This travel system will make your life a whole lot easier. The stroller has some wear and tear but works great and folds very easily.