Britax B-Safe B-Agile stroller adapter for infant car seat Receiver | eBay
Amazon.com: Joovy Caboose S Car Seat Adapter, ONLY Compatible with The Caboose S and Caboose RS Strollers, Works with Select Britax/BOB B-Safe Car Seats : Baby
Britax Click&Go Adaptor B-Agile for Britax Hard Carrycot and Britax Römer Infant Car Seats | kidsroom.de