UNION PACIFIC MASTER MODEL FEATURES: Full interior detailing Scale operating diaphragms Ice or Pullman Mechanical a/c as appropriate Full, separately-applied underbody detail (brake piping, steam traps, brake rigging, etc.) Scale window glass Detailed prototypical trucks with free-rolling metal wheels AccuMate(c) couplers Recommended Minimum Radius: 24" IMAGE SHOWN IS A REPRESENTATION. THE ACTUAL ROAD NUMBER IS IN THE PRODUCT DESCRIPTION. WARNING: CHOKING HAZARD - SMALL PARTS! NOT INTENDED FOR CHILDREN UNDER 3.