Model: Era V. The locomotive has an NEM digital connector. It also has a 5-pole motor with a flywheel. 4 axles powered. Traction tires. The body is made of plastic; the hand rails on the sides and ends are made of metal. The headlights and marker lights are maintenance-free LEDs. The locomotive has a close coupler mechanism. Length over the buffers 90 mm / 3-9/16".