Features: _x000D_ 1. 100% brand new and high quality. _x000D_ 2. Made with aluminum alloy material for increased bear bearing and durability. _x000D_ 3. Chrome plated surface, beautiful, wear resistant and anti-corrosion. _x000D_ 4. High hardness, low noise and rustproof. _x000D_ 5. Suitable for silent, high-speed and precise equipment. _x000D_ _x000D_ Specification: _x000D_ Model: SBR16UU _x000D_ Material: Aluminum alloy _x000D_ Shaft Diameter: 16mm _x000D_ Weight: 585g (approx.) _x000D_ _x000D_ Package List: _x000D_ 4 * SBR16UU Bearing Block 11. 100% brand new and high quality. 22. Made with aluminum alloy material for increased bear bearing and durability. 33. Chrome plated surface, beautiful, wear resistant and anti-corrosion. 44. High hardness, low noise and rustproof. 55. Suitable for silent, high-speed and precise equipment.