Copper Wool- Skein, Pad, Wad - 3.5 Oz Skein Fine Grade 1/0 Grade - Made in USA! Great for cleaning easy-to-scratch/scour surfaces where steel wool may be too abrasive, such as guns Great for cleaning and general use where steel or brass wool isn&#039;t preferred Can be used for rodent control Fine grade, 1/0 Continuous loose ribbon / skien