These are orange versions of this low-friction plastic bearings first offered in Item 15523, that assist make sure that your Mini 4WD car runs as near to maximum efficiency as you can.
• Low-Friction 620 Plastic Bearings x5
• Low-Friction 520 Plastic Bearings x2
• 620 size components are to be used on hex shaft axles, while 520 size components are for use in Mini 4WD PRO automobile counter gears.
• suitable for Mini 4WD and Mini 4WD PRO cars.