Model: The locomotive has a digital interface. It also has a 5-pole motor with a flywheel. 4 axles powered. The headlights and marker lights are LEDs and they change over with the direction of travel. The locomotive has a close coupler mechanism. The passenger cars have close coupler mechanisms and the 66616 LED lighting kit can be installed in these cars. Total train length 450 mm / 17-3/4". A locomotive controller with a switched mode power pack and hardware for connections are included. The oval of track includes Radius 2 curved track. Space required: 90 x 47 cm / 35” x 19“.