Overview Product Description MTH Rail King 30-74105 Union Pacific "Challenger" Merchandise Service 40' double door Box Car, 3 rail Semi-scale size to fit in proportionally with Lionel "traditional size" trains (like 6464 box cars) Opening sliding door New in box Durable ABS Body Die-Cast Trucks and Couplers Compatible with Lionel and all traditional 3-rail systems Questions? E-Mail us at pdt212@gmail.com or call 805-226-0320 Product Videos Custom Field Product Reviews