Amazon
Stokke Stroller Multi Car Seat Adapter, Black - Compatible with Select Maxi COSI, Nuna, Cybex & Clek Car Seats - for Stokke Trailz Terrain, Xplory 6 & Xplory X Strollers - Easy-to-Clean Plastic
Babylist
Stokke Stroller Car Seat Adapter (Multi) in Black