BOXCAR This new series of Made in the USA boxcars highlights the important milestones in railroad history! Continue your collection with this new addition! Made in USA of US and Imported Parts Die-cast metal spring trucks with operating couplers Metal frame Opening doors PRODUCT SPECIFICATIONS Rail Line: Baltimore & Ohio Gauge: O Gauge Power: Electric Min Curve: O27 Dimensions: Length: 10.5" WARNING: CHOKING HAZARD - SMALL PARTS! NOT INTENDED FOR CHILDREN UNDER 3.