Add a unique car to your HO freight car fleet in minutes with the WalthersMainline 81′ four-truck depressed center flat car! When ultra-heavy and oversize loads need to be shipped, railroads are the best choice for the job, using cars like these. Owned by railroads, lease-fleet operators and private industries, features of the layout-ready models include: One time run of these roadnumbers, order now - limited quantity available! Prototypes in service from 1960s on, still used today Handles both oversize and heavy loads up up to 150 tons (136 mt) Heavy die-cast metal body for outstanding performance empty or loaded Separate air and handbrake details at both ends per prototype designs Add a realistic load with the Cornerstone(R) Electric Transformer Kit (#933-3126), sold separately Four 100-ton trucks with 36′ RP-25 metal wheelsets Proto MAX(TM) metal knuckle couplers