10 Loose Ceramic Balls 4mm Al2O3 Alumina Oxide Bearings Balls
|4mm Loose Alumina Oxide Ball Bearings|
Ceramic Balls Al2O3 G10
Loose Ceramic Balls 4mm Al2O3 (Alumina Oxide), this is a popular size that could be used in many Bicycle or any applications that uses this size 4mm. Balls are made of Ceramic Al2O3.