IRON KING Train Set - Which EZ Track Style is in the Box?

[playswithcars]

Just got our son the Iron King 155pc Train Set (sold at Costco) as a Christmas present.  We would like to add a track pack to the set to make the layout more interesting.  The box only says "E-Z Track" and does not specify whether it comes with the "Nickel-Silver E-Z Track (with gray roadbed)" or the "Steel-Alloy E-Z Track (with black roadbed)".  Can anyone tell me which type is in the box?

Thanks!!

[Pacific Northern]

Your train set comes with the black E-Z track and not the grey n/s track.

[simkon]

As a side note nickel-silver (grey roadbed) is preferred over the steel (black roadbed) due to its improved conductivity after being oxidized.