42901 E-Z Riders with Ball Bearing Rollers HO On30 4/pk

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.