This is a single child Chariot Cougar 1 jogging stroller with the bike conversion arm and an infant sling. I loved it when our sons were young but no longer have a need for it. It is an older model and looks a bit loved, but functions perfectly. When I bought it used, it didn't come with the plastic protectors for the rear wheel quick release, but that hasn't impacted my usage at all. Comes with owner's manual. This totally helped me keep running when the kids were young and we had a few fun bike trips, too!