4pk Roller-Bearing Rollers - Great for test track, Break-in, etc.
- for use with locomotive drivers
- full electrical pickup
- Brand New sealed package from Bachmann Trains
- Make sure your fleet is running smootly with these handy ball-bearing rollers.
- E-Z Riders allow you to run your loco in place on your workbench or in a display case.
- Simply place them on a powered piece of track and place one under each of your locos powered axles.