Display/Test Stand Rollers - E-Z Riders(TM)

[ejseider]

I saw the Display/Test Stand Rollers on Walthers site.  It gives a Bachmann part number for them, but I haven't been able to find them on Bachmann's site.  I was hoping that these would be something that I can use to test engines and other powered cars without actually putting them on a track.  Can anyone tell me how these work?  Can they be used to operate an engine while it is in one place, i.e. not rolling on a track?

[Terry Toenges]

E-Z Riders
https://shop.bachmanntrains.com/index.php?main_page=product_info&cPath=879_604_782_784&products_id=2538&zenid=rhttk6ll8s83g4tuabedf8tgm4

[rich1998]

I bought a set of four some years ago from Micro Mark. A great investment.

Rich