This is a most useful unit for hauling both people and material. These cars are offered with your choice of riveted steel or truss-rod frames in 2.5" or 3.75 inch scale and up to 10 feet long. The roof on the caboose can be removed on the 2.5 inch scale and a seat can be placed in the caboose. On the 3.75 inch scale version the roof hinges up for massive amounts of storage inside the caboose. A bench seat can be placed in the work area in front of the caboose house to hold passengers as well as provide more storage. Comes with 7.25" or 7.5" arch bar trucks and on the E scale version (3.75" scale) you may order up to 15" gauge trucks. Comes with RMI's unique dual coupler pocket to accept either 1.5" or 2.5" scale couplers.