This is the Maxi-Cosi Citi travel system. It's the lightest model, which is no longer sold. It doesn't have an ISOFIX adapter, only a 3-point seat belt attachment. You can easily move it between cars ⭐︎ I used it as a stroller by attaching it to an AirBuggy. The instruction manual is also included. I will include the AirBuggy attachments. I will ship it via Takkyubin within 1-2 days.