Purpose and key benefits Cleans and refreshes climbing holds on gravel and sandstone without altering the rock surface. The brush preserves natural rock features and pockets while removing loose grit and dirt. Soft boar bristles deliver a firm, controlled scrub on delicate surfaces so you get improved traction without damaging the rock. Compact, lightweight design and an ergonomic handle make it easy to carry and use on any climb for fast, effective brushing. What makes it stand out Natural beech wood handle with meticulous workmanship for a comfortable, secure grip during repeated use. Durable, wear‑resistant construction and quality boar bristles for long service life even with frequent outdoor use. 2‑in‑1 multifunction: integrated file lets you remove or smooth calluses, so you can maintain hand health without carrying extra tools. Function, compatibility, size and material Function: brushing loose particles and grime from rock surfaces; gentle enough for sandstone and gravel. Compatibility: designed specifically for use on gravel and sandstone crags where preserving texture and pockets is important. Size: small and lightweight for easy transport in a pack or on a harness. Materials: natural beech wood handle, soft boar bristles, wear‑resistant construction; built‑in file for callus maintenance. Performance and user experience Provides controlled pressure and consistent bristle contact for effective cleaning without overscrubbing. Ergonomic handle reduces fatigue and improves precision when brushing tight pockets or edges. Long‑lasting bristles and materials keep the brush performing climb after climb. Practical use scenarios Bouldering on sandstone crags: quickly brush loose grit from edges and pockets before attempting a problem to restore intended friction. Multi‑pitch or trad routes on gravelly faces: keep holds clean between pitches to maintain reliable hand and foot placements. Day trips and travel: use the built‑in file to manage calluses on the go, avoiding the need for a separate tool. This climbing brush is a compact, durable tool designed to clean gravel and sandstone surfaces effectively while protecting rock features and helping you maintain hand health.