The Baby Jogger car seat adapter is the easiest way to turn your pushchair into a customized travel system. attaching your car seat to a baby jogger stroller has never been easier. you can even fold the pushchair with the adapters attached, giving you the most versatile travel system available. custom-designed for baby jogger city mini 2 (3- and 4-wheel), gt2 and elite 2 pushchairs. these baby jogger car seat adapters are compatible with a wide range of Cybex and Joie infant car seats.