Micro-Mark 82896 HO Scale or On30 Rollers for Locomotives Set of 4 Era_Era III (1945-1970) Incision Hubs are included

Incision Hubs are included

The idea of offering these “Super Cars”

giving them more contrast and volume

Aluminum frame rails

Micro-Mark 82896 HO Scale or On30 Rollers for Locomotives Set of 4 Era_Era III (1945-1970) Incision Hubs are includedMicro Mark 82896 HO Scale or On30 Rollers for Locomotives Set of 4 Use these miniature roller sets to break in, tune up and test your HO and On30 locomotives. Simply place between your track and the powered wheelsets of your engine, then turn up the power. Metal sideframes conduct electricity from rail through roller bearings to wheel. Now your locomotive does its work while standing still! Makes it easy to detect, isolate and repair erratic operation