Model: The locomotive comes with a digital decoder, controlled high-efficiency propulsion and Telex couplers. 3 axles and a jackshaft powered. 2 traction tires. The headlights will work in conventional operation and can be controlled digitally. The Telex couplers front and rear can be controlled independently of each other and along with the acceleration and braking delay can also be controlled digitally with the 6021 Control Unit. Separately applied metal end railings. Length over the buffers 12.0 cm / 4-3/4".