STROLLER COMPATIBILITY: UPPAbaby Vista (models 2015-2019), Vista V2, and Vista V3 strollers. TO BE USED WITH: RumbleSeat V2 plus , Bassinet models 2015-Newer, Aria, Mesa V2, and Mesa Max Infant Car Seats. CANNOT BE USED WITH: Toddler Seat (included with Vista purchase) TRANSFORM YOUR VISTA: Our Lower Adapters for your Vista allow for multiple seat configurations and create more space between your primary and secondary attachments for a comfortable ride. QUICK ATTACHMENT: Large hubs and quick, no-tools attachment with color coded dot indicators ensures proper installation. SECURE CONNECTION: Easy open and close mechanism with closure lock for ease of mind.