Offering three types of brushes, this All Purpose Receiver Brush Variety Pack allows you to chose the right brush for the right project. Included in the Variety Pack is a stainless steel bristled brush (most aggressive), a bronze bristled brush, and a nylon bristled brush. Combined, these brushes have over 1001 uses. Try these brushes on: Firearms, Automobile Detailing, Boats, Golf Equipment, Battery Terminals, Camping, Grout, Jewelry, Wood Working, RC Hobbies, Crafts, and much much more!