This brush set has sturdy and good quality brush bristles that fit and works perfectly on surfaces you need to clean. The set comes in different types of brush bristle that suits to your needs which includes Brass, Nylon and Stainless Steel bristle Nylon Brush: This Nylon Brush Works Well In A Broad Range Of Applications Such As Aggressive Scrubbing, Dusting, Surface Finishing, Weld Blending, Rough Surface Preparations, Cleaning And Removing Contaminants. Stainless Steel Brush: This Stainless Steel Wire Brush Is Perfect To Use On Cleaning Stainless Steel Such As Lavatory Faucets, Bathroom And Shower Faucets. By Using A Stainless Steel Brush, It Will Prevent Marking And Pitting The Surface. Brass Brush: This Brass Bristle Brush Is Ideal To Use On Smooth Surfaces Or To Clean Harder Surfaces Without Marring It. This Brass Bristle Brush Can Also Be Used In Flammable Environments Where Non-sparking Tools Are Needed. These brushes will help you clean and eliminate rust, filth and contamination on surface very quickly and easy. It is primarily an abrasive tool, used for scraping rust and removing paint. These brushes are widely used to clean surfaces before painting.