10-Pack 18mm Loose Ceramic Balls G20 ZrO2 Bearing Balls

10 Loose Ceramic Balls 18mm G20 ZRO2, this is a popular size that could be used in many Bicycle, or any application that uses this size 18mm. Balls are made from high-strength Ceramic ZRO2.

• Loose Balls
• Ceramic Balls
• Material: Zirconia Ceramic (ZrO2) (Zirconium dioxide)
• Size: 18mm
• Quantity: 10 Ball Bearings