HO 31" BLACKENED Metal Wheels for IHC Cars - Set of 36 for Ltwt/SS/CS Cars

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HO scale 31" blackened metal wheels by IHC - set of 36 axles for lightweight, smooth side & corrugated cars
Replacement wheel set with needle-point bearings and NMRA RP25 wheel contours for IHC.
These work on IHC smoothside & corrugated side 4-wheel trucks, AHM & some Rivarossi 1930 72' cars
Axle length is 24.8mm
Pictured in silver but the wheels are blackened.