Makes it possible to use Chicco Keyfit 30 infant car seats with all Stokke? strollers. With a cover on the adapter that prevents the attachment and use of sibling seat, the Stokke? Stroller car seat adapter for Chicco is compatible with the Stokke? Crusi? chassis in addition to all other Stokke? Stroller chassis (*Scoot serial number 118AA0040583 and above).