Gentle on sensitive surfaces This brush is designed for rock types such as gravel and sandstone, delivering bristle quality that cleans without roughing delicate textures. It provides a firm grip and a gentle touch to help preserve the integrity of wrinkles and pockets in the rock. Portable and lightweight Compact size and an ergonomic handle enable comfortable, precise brushing. Take it on climbs, maintain solid grip control, and clean holds with ease on every route. Sturdy and wear resistant Built from high quality natural beech wood and wear resistant materials, with soft boar bristles for durable performance and long life in cleaning tasks. Multi-functional brush 2-in-1 design with a built-in file to remove calluses, supporting hand health along with grip maintenance. Use scenarios - Clean chalk, dirt, and debris from rock holds on outdoor crags or indoor walls to improve grip. - Carry on climbing trips due to compact, lightweight design for on-the-go use. - After climbing, use the built-in file to remove excess calluses and smooth skin for better hand health.