From DFY, these car seat adapters feature: Easy to use Compatible with major car seat brands Creates a compact travel system Compatible with these tested car seat brands: Nuna Pipa RX , Pipa Aire RX, Clek Ling, Cybex Aton G, Cloud Q, Cloud G, Cloud T, Maxi-Cosi Mico Luxe Dimensions: 2 W x 1 D x 9 H, 1.32lb Wipe clean. Imported. Travel anywhere with your infant after easily attaching your car seat to the DFY. R1 stroller. The car seat adapters fit any major car seat brand to give you flexibility in your outings. These adapters work by attaching to the chassis of any DFY. R1 stroller and contain an opening at the top for your car seat to fit. Only to be used with the compatible car seats specified.