Walthers O scale/gauge Pullman-Standard 6-wheel heavyweight passenger car trucks.  Die cast side frames painted or blackened flat black.  Color coverage good, no chips.  Excellent detail.  Simulated coil and leaf springs,  rivet detail on journals, detail on journal box covers.  Metal wheels  on steel axles.  Wheels have wide flanges for 3-rail track.   Three-rail not your persuasion?  Easily converted to 2-rail simply by replacing wheel sets with wheels for 2-rail.  Trucks look unused, still in original box from Walthers.