This 000 grade fine bronze wools is commonly used on glass, woodwork, and marble. It is rust resistant and will last much longer then steel wool. Works well for stripping, sanding, smoothing, and polishing all types of wood and metal surfaces. Unlike steel wool, which leaves small fibers that can rust and discolor in corrosive environments, Bronze wool resists shedding, rust , and corrosion. Bronze wool cuts better and faster than sandpaper and other abrasives, with fewer scratches.