This BRIO World Two Way Battery Powered Engine is a fun engine to play with; with its forwards and backwards motion. If it starts getting dark you can always turn on its headlamp and light up the way. This great set includes 1x Battery Powered Engine. Each set is fully compatible with other Brio sets, tracks and trains. Brio products are made from very high quality plastic and Beech wood from sustainable sources. The Trains, Wagons, Carriages, and Road Vehicles all feature the classic Brio magnetic couplings allowing for easy connection to each other. Requires 1 x AAA battery (not included).