These lightweight yet tough 19mm aluminum rollers feature built-in 520 ball bearings to provide your Mini 4WD machine with smooth movement. In addition, they can be used for both front and rear roller setups. The parts have an anodized blue finish for a cool look!
• 19mm Aluminum Ball-Race Roller x2
• Attachment screws included.
• Compatible with all Mini 4WD and Mini 4WD PRO cars.
