Model: The Marklin 37960 is an equisite locomotive.  Model is equipped with a mfx digital sound decoder and extensive sound functions. It also has controlled, high-efficiency propulsion and 4 powered axles with traction tires. The frame is articulated to enable the unit to negotiate sharp curves.  The dual headlights will work in conventional operation and can be controlled digitally. The locomotive has numerous, separately applied details. Length over the buffers 20.3 cm / 8". The Marklin 37960 is exquisite, it might just be the best model in the Marklin assortment.  Model is all metal and is very limited.  Click here to view http://www.reynaulds.com/products/Marklin/37960.aspx