Tamiya JR 19mm Aluminum Ball-Race Roller Set J-Cup 2023

The rollers are lightweight, rigid and have built-in ball bearings for smooth rotation.

Features:

2x8mm screws x2
Spacers x4
520 Bearing-built-in rollers x2
Rubber rings x2
Compatible with Mini 4WD and Mini 4WD PRO cars. (Note that some chassis and bodies may require modification.)
19mm aluminum ball-race rollers feature a blue anodized finish, rubber rings and Japan Cup/ Tamiya logo prints. (Do not use cleaners as they will damage the printed area.)
Rubber rings limit shock when the car hits track walls.
Small parts for attachment included.