This dust blower brush is great for cleaning lint and dirt from watch crystals, lenses, and camera parts without scratching or smudging.  A blast of air removes particles on the piece. The brush has a sliding cap that keeps the brush clean and protects it from debris.  This product will save you money in the long run, since you won’t need to constantly buy air in a can. Ensure your pieces are free of dirt, by ordering this dust blower at Stuller.com/tools.