Frame material is aluminum, width only 5mm,small and exquisite ... technically used for removing dust and has good effect3. Aluminum frame,it is good durablity to use.4. Fast, efficent ... sheetsThe dust removal roller has many uses: PCB, Screen printing, Computer,Electronic devices,Laser optics,Medical,Graphic arts, Pharmaceuticals, ... tack , non-silcone). manual sticky roller(aluminum sheet frame/handle)