The Kinetronics StaticWISK SW-010 has been designed to gently sweep dust specks off the CCD in digital cameras. It is also effective for cleaning SLR mirrors, lenses, optics and other ultra sensitive surfaces. The StaticWISK SW-010 is constructed with anti-static fibers and a special conductive handle to dissipate static electric charges. Neutralizing these static charges releases clinging specks for easy removal. The StaticWISK SW-010 brush length can be adjusted to control the flexibility ofthe brush; the longer the fibers the softer, and the shorter the fibers the firmer. You can choose the length for your specific cleaning needs. The StaticWISK SW-010 brush should be cleaned prior to each use by vacuuming or blowing out with a compressor. If needed, the brushes can be washed in baby shampoo and water without affecting performance.