Features: -Clek Car Seat Adapter for UPPAbaby -The Clek Liing/Liingo car seat adapters have been specifically designed to be used with the UPPAbaby Vista* and Cruz strollers -They have been tested and certified by an independent testing body and are compliant with the applicable ASTM standards for car seats on strollers -For use in Single Mode only *Compatible with Vista and Vista V2 strollers manufactured from 2015 to present. Not compatible with Vista strollers manufactured prior to 2015 *Limited Lifetime Warranty by Clek