From Silver Cross, these lower car seat adaptors feature: The adapters attach quickly and easily to connect our Wave stroller & compatible infant car seats to make smart travel systems.Key Features Include: Compatible with Wave Strollers Connects to the lower riding position of each stroller when in tandem mode Compatible Infant Car Seats Include: Clek: Liing Cybex: Aton, Aton Q, Cloud Q, Aton G & Cloud G Maxi Cosi®: Mico 30, Mico Max, Coral XP & Mico Luxe+ Nuna®: Pipa™, Pipa™ Lite , Pipa™ Lite LX, Pipa™ RX, Pipa™ Aire, Pipa™ Aire RX, Pipa™ Urbn Imported.