1. steel wool 2. grade:0000, 000, 00,0,1,2,3,4 ... steel woolgrade:0000, 000, 00,0,1,2,3,4STEEL WOOL GRADE CHART0000SUPER FINEFor varnish, polyurethane, smooth lacquer, and shellac. Buffing ... like rust, varnish, and dirt build-up roll style steel wool