Take a stroll with your infant and your toddler using a BOB duallie infant car seat adaptor for Britax infant car seats. Connect the infant car seat adaptor to your duallie stroller in order to snap on your infant car seat. It"s easy to install and remove. You can fold up your stroller with the infant car seat adaptor attached. Plus, it has a snack try for your toddler. Use this infant car seat adaptor with BOB duallie strollers and Britax infant car seats with the Click & Go attachment systemB-Safe and Chaperone infant car seats.