One 5lb roll consists of a steel wool ribbon that is 1/2″ thick, 4″ wide  and approx 125′ long, wound onto a 2″ ID core to an outside diameter of  about 12″. Use this roll to make economical pads for a large variety of  industrial, professional, and maintenance applications. Produced with  precision machinery to the highest quality standards. #4 Extra-Coarse:  For cleaning and removing. Removes the toughest rust, dirt, old paint  and varnish. Can be used for cleaning engines. Not recommended for high  gloss surfaces or delicate finishes.