This is a CLOSEOUT item: availability is limited to remaining stock. Turn your Valco Baby single Tri-Mode or Zee stroller into a travel system with this car seat adaptor. It is compatible with Britax Companion infant car seats, letting you move your newborn from the car to the stroller without waking them up. One adaptor design serves both the Tri Mode and Zee single stroller models. Car seat and stroller are sold separately; always check your car seat and stroller instructions before use.