This Primitive Men's Hardware 8 Pack Black/Gold by Primitive features
- Premium Steel Ball Bearings
- Nylon Cages For Reduced Weight And Friction
- Deep Groove Design To Withstand Higher Impact
- Dust-Resistant, Frictionless, Removable Sheilds
- Lubricated With Low-Fiscosity, Non-Corrosive Oil
- 8mm (Bore Diameter) X 22mm X 7mm
