A Static and Dust Control ProductThe Kinetronics StaticWisk© hand held anti-static brushes are used for cleaning lenses, films, scanners, cameras, plastics, acrylics, jewelry, glass, monitors, instruments and technical equipment.The unique blend of soft natural hairs and conductive synthetic fibers plus the conductive nature of the construction result in effective static dissipation. Dust and lint are whisked away.Tens of thousands of StaticWisk anti-static brushes are in daily use throughout the world. The StaticWisk hand held brushes are available in six sizes from 3/4" or 20mm to 11" or 280mm. StaticWisk brushes are packaged in reusable containers. Model numbers show brush size in millimeters and (inches).