1、These bearings are made of high quality steel for low noise and long service life. 2、They are double-sided sealed to avoid contaminants entering and save lubricant. 3、This section bearing feel smooth, low noise, long service life. 4、Suitable for motor, toys, model, instruments and meters, electric tools, communications equipment, fitness equipment and other fields. 5、There comes total 10 pieces miniature bearings which you may use for many different projects. Features: 1. These bearings are made of high quality steel for low noise and long service life. 2. They are double-sided sealed to avoid contaminants entering and save lubricant. 3. This section bearing feel smooth, low noise, long service life. 4. Suitable for motor, toys, model, instruments and meters, electric tools, communications equipment, fitness equipment and other fields. 5. There comes total 10 pieces miniature bearings which you may use for many different projects. Specification: Condition: 100% Brand New Item Type: Ball Bearings Cage and its materials: Steel Plate Use characteristics: High Speed Uses: General Number of rolling body columns: Single Column Raceway type: Deep Groove Raceway Bearing material: Bearing Steel Rolling body type: Ball Angle: 15 degrees Sealing cap: Double-sided Seal Rolling body: Steel Ball Package List: 10 * Ball Bearings Note: 1. Please allow slight error due to manual measurement. Thanks for your understanding. 2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard.