Lower Adapter for Vista Allowing for more space between your primary and secondary seats, the UPPAbaby VISTA Lower Adapter is compatible with models 2015 and later. Easy to attach with no tools needed, it has color-coded dot indicators for proper placement. Create multiple second seat configurations as your family grows with the UPPAbaby Vista Lower Adapter Allows more space between your primary and secondary seats for VISTA models 2015 and later, Bassinet models 2015 and later, and MESA Infant Car Seats (sold separately) Color-coded dot indicators ensure proper placement and installment Stroller folds with adapter attached Easy-to-install with no tools required Plastic construction Measures 4.34" L x 1.86" W x 1.01" H Weighs 0.7 lb. Lower Adapter for Maxi-Cose/Nuna/Cybex/Be Safe Gives parents the convenience to turn their UPPAbaby Vista Stroller (sold separately) into a convenient travel system for a toddler and infant Fits the lower frame bracket (secondary position) of Vista 2015-later models only Compatible with most Maxi-Cosi®, Cybex® and Nuna® Infant car seats including: Maxi-Cosi Mico AP Maxi-Cosi Mico Max 30 Maxi-Cosi Mico NXT Maxi-Cosi Pebble Max-Cosi Pebble Plus Maxi-Cosi Cabrio Fix Nuna Pipa Cybex Aton Cybex Aton 2 Cybex Aton Q Not compatible with Maxi-Cosi Prezi Color-coded dot indicators ensure proper installment Stroller folds with the car seat adaptor attached, so you can fold, load, and go Plastic construction Spot clean Measures 4" L x 5" W x 9" H