... s technically used for removing dust and has good effect3. Aluminum frame,it is good durablity to use.4. Fast, ... roller has many uses: PCB, Screen printing, Computer,Electronic devices,Laser optics,Medical,Graphic arts, Pharmaceuticals,and etc will clean almost ... 5 different tack levels(super high tack,high tack, medium tack,low tack , non-silcone). manual sticky roller(aluminum sheet frame/handle ...