The UPPAbaby 0919-UMA-WW adapters allow you to attach select infant car seats to Vista (2015+), Vista V2, Cruz (2015+), or Cruz V2 stroller framescreating a seamless travel system. Constructed from durable ABS plastic with metal locking clips and color-coded indicators, the pair enables secure, tool-free installation. The stroller folds with adapters attached for easy transport and storage. Compatible with a wide range of infant seats, they help streamline transitions between car and stroller for busy families.