【About the product】
This is a set of 10 bearings 520ZZ (MR52ZZ).
Good performance bearings for cheaper prices.
There is no bad for cheap products that can be easily replaced than using expensive factory for a long time.
Easy to change and maintain high performance all the time.
[Use]
Maintenance for RC and Mini 4WD
Reel Maintenance
Repair Hard Disk Drive, CD-ROM, DVD