Includes 3pcs 8.5" and 3pcs 7" brushes. Works well on a variety of applications including stripping paint, rust and cleaning pipe threads. Comfort at hand with an ergonomically designed handle. Includes brass, stainless steel, and nylon wire brushes in both 8.5" and 7" sizes. 8.5" brushes clean a large area quickly, and 7" brushes easily get into small spaces.