Joolz Geo/Geo 2 Car Seat Adapters Adaptors for Maxi Cosi, Besafe, Kiddy and Nuna | eBay
Amazon.com : Joolz - Car Seat Adapters - Accessory for your Day Stollers - Great Flexibility - Keeps your Baby Sleeping - Compatible for Day2, Day3 and Day+ - Easy Installation & Fast to Remove : Baby
Joolz Car Seat Adapter for Britax Römer - Little Folks NYC