• Mockingbird Car Seat Adapter connects your Mockingbird Stroller with popular infant car seats • Turns Mockingbird Stroller into an easy travel system solution usable from birth • For use with Mockingbird Single Stroller or Single-to-Double Stroller • Easy installation, snaps on and off in seconds • Easy to wipe clean • Infant Car Seat Compatibility (Sold Separately): Baby Jogger city GO 2, Britax B-Safe 35, Britax B-Safe Gen2, Britax B-Safe Gen2FlexFit, Chicco KeyFit, Chicco KeyFit 30, Chicco KeyFit 35, Chicco KeyFit 30 ClearTex, Chicco KeyFit 35 ClearTex, Chicco KeyFit 35 Zip ClearTex, Chicco Fit2 or Chicco Fit2 Adapt, Graco SnugRide SnugFit (35, 35 LX, 35 DLX, 35 Elite, 35 XT), Graco SnugRide 35 Lite LX, Graco Premier SnugRide SnugFit 35 XT