Amazon.com : phil&teds TSDK9 Car Seat Adapter for Mountain Buggy, Maxi COSI, and Cybex Infant Car Seats to 2015+ Dash Stroller, Second Seat Placement : Baby
Mountain Buggy Swift / Mini Car Seat Adapter Clip 25 for Maxi Cosi, Aton, Alpha 9420015705997 | eBay
Mountain Buggy Duet Twin Car Seat Adapter – Swaddles Baby