Koko is an electric passenger train built for high speed. Koko is confident and loves racing ahead of the other engines but needs to learn that speed isn't everything. This durable, die cast engine features a realistic Koko design with strong front and rear couplings to connect engines together. The die cast engines are compatible with the Chuggington playsets. Chuggington - Koko is a wonderful toy for fans of the series and is a great way to encourage imaginative play. Please Note: Koko is not a real electric train.