Product Details: Boar Hair is the standard in climbing simply because of its durability and stiffness. Natural fiber brushes will out perform a synthetic brush when scrubbing down climbing holds. Our black bristle brushes features a higher grade bristle than the tan boar hair brush. Nearly all tan boar hair brushes are bleached to change the color and minimize the animal smell. Ideal for holds bigger than your cranium Great for brushing volumes or the middle part of your back Brushes are crafted with natural fibers Angled tip for hard to reach areas