This is a child seat adapter for the BABYZEN YOYO. It's an attachment for attaching a child seat to the YOYO stroller. Compatibility: Compatible with BABYZEN YOYO, YOYO2, and YOYO3 strollers. Used when attaching a newborn child seat to the stroller. Features: Compatible with most child seats. Purchased from the Stokke online shop. YOYO Child Seat Adapter *Top part only. Bottom part not included. Immediate purchase OK. Use the child seat adapter to instantly attach a child seat to your YOYO stroller. YOYO has its own child seat: the YOYO car seat by BeSafe®. However, there are compatible child seats that can be attached to the stroller frame with two clicks. • BeSafe® YOYO car seat • BeSafe iZi Go Modular X1 • Cybex Cloud T • Cybex Cloud Z • Cybex Cloud Z2 i-Size • Cybex Aton Q • Bebe Confort / Maxi Cosi Pebble Pro