A quick rub-a-dub-a-scrub can turn many flailed climbing attempts into one clean send, and Mammut's Boulder Brush Set makes sure you never peel off a greasy hold ever again. This set includes fifteen brushes, five of them are large for bouldering, and the other ten are smaller to fit in harnesses for routes. Mammut made the brushes with soft wooden handles and natural hair bristles that are super friendly to the rock.