Sector 9 Ceramic Bearing 8 pack
- 7 Ball Black Ceramic Bearings-Silicon Nitride Ceramic
- Extra Hard, High Density Black Ceramic Balls-Lighter than Steel
- Corrosion Resistant, Waterproof Balls
- Two Removable Rubber Shields for Easy Cleaning
- Nylon Ball Retainer with Grease/Oil Mix for Speed & Longevity