Primitive Skateboarding bearings.
- Premium Steel Ball Bearings
- Nylon Cages or Reduced Weight And Friction
- Deep Groove Design To Withstand Higher Impact
- Dust-Resistant, Frictionless, Removable Shields
- Lubricated with Low-Viscosity, NON-CORROSIVE OIL
- 8MM (bore diameter) X 22MM X 7MM