Model: The locomotive is constructed of metal with many cast-in details. The total design of the locomotive is ideal for model railroad operation. The locomotive has a digital decoder and a special can motor. 4 axles powered through cardan shafts. Traction tires. The headlights are LEDs, they will work in conventional operation, and can be controlled digitally. The acceleration and braking delay can be controlled with a 6021 Control Unit or Märklin Systems. The locomotive has adjustable running characteristics. 2 pantographs that can be raised and lowered (they are not wired to take power from catenary). Length over the buffers 21.7 cm / 8-1/2".