Using these wave tandem car seat adaptors, you can easily turn your silver cross wave pushchair into a cool travel system. (pushchair & car seat sold separately)Can only be used in lower positionKey Features:Go from car to pushchair without waking babyTurns your pushchair into a travel systemBring your child closer during those early monthsTime-saving simple installationCompatible With:Maxi Cosi CabriofixMaxi Cosi PebbleMaxi Cosi RockMaxi Cosi Pebble PlusMaxi Cosi Pebble ProMaxi Cosi CoralCybex AtonCybex Cloud ZBeSafe iZi Go ModularBeSafe iZi Go X1