This is certainly a limited-edition Mini 4WD racing roller set that commemorates Japan Cup 2020. These lightweight yet tough rollers have actually built-in 520 ball bearings for smooth motion, and that can be used for both front and rear roller setups. The components have actually an anodized black finish with special lettering/logo!
• 19mm Aluminum Ball-Race Rollers x2
• Screws for accessory included.
• appropriate for all Mini 4WD and Mini 4WD PRO vehicles. (Please note that some systems may necessitate modification.