Liberon Steel Wool is of the highest quality and is chosen and recommended by craftsmen around the world. Produced using a high quality steel to create a crumble and dust resistant wool that is virtually oil-free with no rogue strands. Available in 5 grades: extra fine grade 0000 ideal for polishing and cleaning delicate surfaces, a range of fine to medium grades 00 and 0 ideal for light cleaning and surface preparation, and medium to coarse grades 2 and 4 ideal for heavy cleaning, paint and varnish removal.