Includes die-cast metal engines and vehicles Features plastic connectors to attach engines to cargo cars or tenders (sold separately and subject to availability) Works on Thomas & Friends Adventures train tracks (sold separately and subject to availability) Helps develop gross motor and sensory skills, and helps inspire imagination An collection of durable, push along die-cast train Thomas & Friends engines and vehicles featuring plastic connectors to connect to other Thomas & Friends TrackMaster push along, die-cast train engines or tenders. Perfect for use with Thomas and Friends TrackMaster engines, tracks and playsets (sold separately and subject to availability)