1.GENTLE ON SENSITIVE SURFACES This climbing brush has been expertly crafted for rock types such as gravel and sandstone, providing perfect bristle quality for delicate surfaces. With firm grip and gentle touch, it maintains the integrity of wrinkles and pockets without affecting the composition of the rock. 2.PORTABLE LIGHTWEIGHT This small and lightweight climbing brush features meticulous workmanship and ergonomic handle for comfortable, precise brushing. Take it anywhere and enjoy perfect grip control and careful cleaning with every climb, all thanks to its perfect workmanship. 3.Sturdy and Wear Resistant This climbing brush is made of high quality natural beech wood and wearresistant materials and features soft boar bristles that provide excellent durability and ensure a longer life for all your cleaning needs. 4.MULTIFUNCTIONAL BRUSH: Experience the convenience of a 2in1 design; Easily remove calluses with a builtin file, improving the functionality to maintain hand .