For this electric train set, we increased the number of locomotive wheels to 4 pairs, and added more smoke outlets to realistically simulate the appearance of steam train. ALLOY RC TRAIN SET: This train set includes 1 steam locomotive, 1 coal carriage and 2 glowing passenger carriage, 1 remote control, 8pcs straight tracks, 8pcs curved tracks, 4 Y-shaped tracks and 1 cross track to start the fun train games. Total track width: 6cm/2.36in MULTI-FUNCTION RC TRAIN SET: Multiple functions remote control train sets for under the tree.