28mm Loose Ceramic Balls G40 ZrO2 Bearing Ball

One Loose Ceramic Ball 28mm G40 ZRO2, this is a popular size that could be used in many Bicycle, or any application that uses this size 28mm. Ball is made from Ceramic ZRO2.

• ルーズボール
• Ceramic Balls
• Material: Zirconia （ZrO2）（二酸化ジルコニウム）
• Size: 28mm
• Quantity: 1 Ball Bearing