... material:metal2.2400RPM speed,96mm blade diameter, blades can be metal or plastic on your options, new ... all has been done by smoothing processing, the shell can be done by painting or plating , safe.4. ... 2.1W, energy saving.5.Fan's life can be 25000~30000 hours,can be used continuously with long time. ... ,stable structure,easy to place.9.Appearance delicate,can be used in any occasion.10.Soft wind, ...