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1/4" inch Loose Ceramic Balls Al2O3 Alumina Oxide Bearing Balls
|1/4" Loose Ball Bearing|
Ceramic Balls Al2O3 G10
Loose Ceramic Balls 1/4" Al2O3 (Alumina Oxide), this is a popular size that could be used in many Bicycle, Balls are made of Ceramic Al2O3.