Add adapters and do it all to create a travel system. The Qool Car Seat Adapters allow click in compatibility with various car seats and are made exclusively for the Joovy Qool Stroller. Customize your strolling experience with the ability to choose forward or rear facing along with the choice of the lower or upper-level positions. Two Car Seat Adapters may be used for twins. Select the adapter that is compatible with your Brand of car seat. Please note: The Qool Front Adapter is required if you want to add two car seat adapters and make your Qool into a double stroller.