Overview Product Description 2 pair of Weaver O gauge 3 rail plastic Roller Bearing trucks/couplers, with metal wheelsets 4 trucks and 4 couplers. Enough for 2 freight cars O gauge, 3 rail New, wrapped in bubble wrap Trucks and couplers made with high strength delrin plastic. Wheels and exles are metal For use on freight cars 1960's and later Fit most weaver models and crown model products freight cars. Can be adapted to Atlas/Roco cars, All Nation, and homebuilt cars with low bolsters NOT FOR MTH, LIONEL, K-LINE, OR ATLAS cars Questions? E-Mail us at pdt212@gmail.com, or call us at 805-226-0320, or Product Videos Custom Field Product Reviews