Stripping Char from Wood for Shou Sugi Ban Technique, Ideal for Barrel Stave Cleanup, Distresses Soft Wood, Raise the Grain on Soft Wood for a Beautiful Finish, Quickly Cleans Barn Wood and Timbers, Burnishes down Splinters and Loose Fibers on Timbers to Leave a Finished Waxy Surface for Easy Cleaning. Ideal to be used in Combo after the WRSS01 Stainless Steel Wire Brush, Made from Elastic nylon bristles impregnated with Silicon Carbide.