Features 1、Surface with oxidation treatment, beautiful and corrosion resistance. 2、Made of aluminum alloy, stronger bearing capacity. 3、High hardness, low noise and rustproof. 4、Prevent dust from entering to extend the service life. 5、Fit for silent, high-speed and precise equipment. Specification Features: 1. Surface with oxidation treatment, beautiful and corrosion resistance. 2. Made of aluminum alloy, stronger bearing capacity. 3. High hardness, low noise and rustproof. 4. Prevent dust from entering to extend the service life. 5. Fit for silent, high-speed and precise equipment. Specifications: Model: SCS30UU Material: Aluminum alloy Quantity 1pcs Outer Diameter: 59.5mm/2.34in Bore Diameter: 30mm/1.18in Size(L*H): 7.3*5.8cm/2.87*2.28in Weight: Approx. 658g Package Includes: 1 x Linear Ball Bearing Slide Note: Please allow 1-3mm error due to the manual measurement. Thanks for your understanding. Package List