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
car seat adaptors
Mountain Buggy - Duet Car Seat Adaptor for Single (Clip 28) - Onefamshop – OneFamShop - The Complete Family Shop
Phil & Teds Dash Adapter for alpha, Mountain Buggy protect, Maxi-Cosi, Cybex | eBay